History Characters / RealmOfTheMadGodEnemies

Exceptionally powerful bosses that have a 10% chance to spawn whenever one of Oryx's Quest Monsters are killed. Boasting large amounts of firepower and health, they should not be taken lightly.

* RareRandomDrop: All of the event bosses have an extremely rare item they can drop: Orb of Conflict (Skull Shrine), Dirk of Cronus (Cube God), Shield of Ogmur (Lord of the Lost Lands), Seal of Blasphemous Prayer (Pentaract), Helm of the Juggernaut (Hermit God and Grand Sphinx), Trap of the Vile Spirit (Ghost Ship), Ray Katana (Rock Dragon), Kageboshi (Jade/Garnet Statues), Tablet of the King's Avatar (Avatar of the Forgotten King), Beehemoth Quiver (Killer Bee Nest), Crystallised Fang's Venom (Crystal Worm Father), and Cloak of Bloody Surprises (Lost Sentry).

* OddJobGods: A god of ''cubes''. To be fair, its creation was an accident, and it's been eclipsed by higher powers in the Third Dimension anyways.

* BrokenArmorBossBattle: The Ethereal Shrine has 200 DEF, is permanently Armored (giving it an effective DEF of 300) and cannot be Armor Broken by players. In order to weaken its defence, players need to stand next to the nearby Lantern; doing so for enough time will first remove the Armored buff, then inflict Curse, then finally Armor Broken. These effects will persist as long as players stay near the Lantern.

* WarmupBoss: The Shrine teaches players the basic survival skills that will be demanded of them in the Moonlight Village, namely patient micrododging and following the Lantern to both survive and dispel its defenses. Fittingly, the two items it can

* RareRandomDrop: The Vitamine Buster and Helm of the Swift Bunny.

* RecursiveAmmo: Can throw bombs that explode into rings of shots.

* ZergRush: Sandsmen in the lowlands desert are normally fairly weak enemies but are prone to overspawning in massive groups known as [[FanNickname Sandman Conventions.]] These can easily kill weak characters [[[PinataEnemy While being easy XP/Fame for stronger characters.]]]

* HardModeMooks: Kitsune Umi will not appear on Leisurely mode, and her true Goddess of Revelry form can only be fought if Challenge difficulty has been activated.

* EyesDoNotBelongThere: In the intermission between his two phases, he'll split himself into a horde of flying eyeballs which fire at players. All of these must be destroyed to progress, not helped by the fact that the [[LightningBruiser Avatar of the Accursed King]] will be hunting down players.

* ActionBomb: His hands can sometimes explode when they get close to you.=

* SuperMode: His Exalted form in his third battle, which he enters upon reaching half health. This form dramatically increases the power and potency of all his attacks while giving him a variety of new ones.

* BossOnlyLevel: The Court of Oryx dungeons (except the Secluded Thicket), the Machine, Beachzone, the Void, heroic dungeons, Belladonna's Garden, Moonlight Village, Admin Arena and the Rehearsal version of The Shatters have no enemies other than a boss and its summoned minions (or in case of the Moonlight Village, one boss fight consisting of three individual bosses).

* PlayingWithFire / MakingASplash: Most Kogbolds attack with either fire, water, or both at once.

* DeathOfAThousandCuts: The dancers inflict conspiciously low damage per shot compared to the other Exaltation bosses. As a player will quickly find out, this doesn't make them any less lethal, due to the sheer ''volume'' of shots more than making up for it.

* OptionalBoss: After defeating the Moonlight Dancers and talking to Village Girl Umi, she may ask if you wants to see something interesting. Saying yes will cause her to revert to her true form of Kitsune Umi for a final performance, an optional boss that is even harder than the Moonlight Dancers.
** If a player manages to defeat the Moonlight Dancers on Challenge Mode [[PacifistRun without hitting them or following the lantern at all]], Umi will instead be fought as Umi, Goddess of Revelry. This form is even more powerful than the first, but is guaranteed to drop some exclusive goodies for your trouble.

* AuthorityGrantsAsskicking: The king of the Shattered Kingdom who packs the leadership skills and immense magical power to match.

* ActionBomb: His hands can sometimes explode when they get close to you.
* AuthorityEqualsAsskicking: According to his lore, he is the King of the Djinn, and he certainly has the power to back up his position.

* EyesDoNotBelongThere: In the intermission between his two phases, he'll split himself into a horde of flying eyeballs which fire at players. All of these must be destroyed to progress, not helped by the fact that the [[LightningBruiser Avatar of the Accursed King]] hunting down players.

* CyberneticsEatYourSoul: As Head Engineer Toven found out the hard way, the Factory Control Core successfully solved the Kobolds' mortality problem, but at the cost of turning them into nigh-soulless machines that would only follow its orders. When Toven realized this, he [[BetterToDieThanToBeKilled refused to let the Kogbolds mechanize him, which seemingly resulted in his death as his corpse can be found in a secret room]].

* ExplosiveOverclocing: Implied with the Overclocking Amulet, said to dramatically increase the performance of Kogbold machines at the cost of damaging their parts. They fortunately don't use it, but wearing said Amulet yourself fittingly grants the single highest DPS boost of any one item in the game, at the cost of an equally severe DEF penalty and no HP bonus.

* PlayingWithFire/MakingASplash: Most Kogbolds attack with either fire, water, or both at once.

* ShieldedCoreBoss: Three times during a fight, the Expedition Engine will retreat to the centre of its setpiece and turn invulnerable, while the eight outlying turrets activate themselves and must be deactivated (via dealing damage) before the Engine can take damage again.

* CowardlyBoss: At low health, the Keyper will slow all nearby players and begins quickly fleeing, while constantly trailing attacks to deter attackers.

* AmbiguouslyEvil: While it created the Prismimics and Crystal Towers with the seeming intention of invading the Realm, its boss dialogue and actions point towards a being that just wants to be left alone with its crystal spawn and mushroom worshippers. When first discovered by the mushroom tribes, it immediately made peace and lived peacefully with them for countless centuries until Steamhammer disturbed them, only retaliating when the dwarves invaded the Crystal Cave and tried to mine its minerals. Whether it's Realm-invading shenanigans were an ulterior motive, a one-off thing, non-canon events, or outright retconned is unknown.

* EldritchAbomination: Almost nothing is known about the Crystal Entity itself or its origins, not even by the Realm Eye - the closest we get to its background is Guill referring to it as an "evil crystal demigod". The only real pieces of information given about it are that it flip-flops between benign and malicious towards life on the surface[[note]]And even then, its goals are ambiguous - while the Crystal Towers point towards a desire to invade and destroy it, the Prismimics were designed to silently replace the population instead[[/note]] (see AmbiguouslyEvil above) and can freely create SiliconBasedLife. The release of the Keyper and the reveal that the Crystal Entity can create dungeon keys at will (effectively keys that can open entrances to any location), and can make an item (the Crystal Key) that can inexplicably open any locks raises further questions about the extent of its abilities.

* OurKoboldsAreDifferent: Kobolds are an ancient race, predating Oryx's conquest of the realm, who excelled in craftsmanship and were held back only by their tragically short lifespans. To rectify this, they built the Factory Control Core, which had them leave behind their frail mortal bodies in exchance for artificial ones, turning them into Kogbolds, immortal cyborgs that could work forever toward its goal of conquering the realm.

* DefeatEqualsExplosion: At 0.1% HP, Ferrus explodes after a delay, leaving behind its molten core which explodes in a final attack, before the core is defeated for good, leaving behind any loot.
* DeusEstMachina: The Kobolds grew to revere this machine as their god, unquestioningly following its every directive.
* SequentialBoss: The Factory Control Core has 3 different forms. As it takes damage, it is forced to recombine itself into stronger forms.
* ShieldedCoreBoss: Multiple times throughout the fight, the Core will activate Shield Generators and become invulnerable until all have been destroyed.

-->''A timeless ritual for the spirits before us... Witness our form! Witness our grace! Witness the beauty, of the Moonlight Dance!''

* TurnsRed: Both boss fights conclude in a Last Word, an extremely difficult Danmaku phase that gradually grows in ferocity.

* MakeASplash: Sage Genji's phases are themed around water, such as Converging Tides, Surging Rapids, Bursting Fountain and Tears in the Rain.
* PetalPower: Dancer Miko's attacks resemble cherry blossom petals, which are no less dangerous than that of the other dancers.

* SuperMode: After defeating the Moonlight Dancers and talking to Village Girl Umi, she may ask if you wants to see something interesting. Saying yes will cause her to revert to her true form of Kitsune Umi for a final performance, an optional boss that is even harder than the Moonlight Dancers.

* BladeOnAStick: The Marble Defender fires constant rows of spears from the line of statues lining the wall. He can also fire more from the back corners of the room in his last phase.

* BonusBoss: Doesn't need to be killed to close the realm, and drops the [[BrutalBonusLevel Lair of Draconis]]

* BonusBoss: Like the Rock Dragon, doesn't need to be killed to reach Oryx and drops a BrutalBonusLevel--in this case, the Shatters.

* BonusBoss: The Corruption Phantom is the optional boss of the Cursed Library, accessible through the spawn room by defeating Avalon the Archivist and discovering the corrupted pressure plates in each dead end.

* BonusBoss: An optional boss that can only be fought if all Tesla Coils in the Mad Lab are destroyed.

* BonusBoss: Can be randomly found in a treasure room within the Abyss of Demons.

* BonusBoss: During Halloween events, the Pumpkin Master is guaranteed to appear after defeating Skuld as an optional bonus boss. When Halloween events are not active, before Skuld's betrayal line, there is a slim chance that she might briefly become vulnerable, allowing you to strike first. Doing so will cause the Pumpkin Master to appear after Skuld is defeated.

* BonusBoss: The Swarm Tree is located in exactly one treasure room in each Woodland Labyrinth instance.

* BonusBoss: The Beekeeper has no Quest Marker and has to be found by randomly blasting the walls and hoping one breaks open.

* MovesetClone: During Thanksgiving, Christmas and Easter, the Cube God is temporarily replaced by, respectively, the Gobble God, the Ice Cube God and the Sphere God. Gameplay-wise, the only difference between them is that killing the Gobble God and its minions will ''not'' disqualify one for the Friend of the Cubes fame bonus, while killing the standard Cube God, the Ice Cube God or the Sphere God will; and the Gobble God and Ice Cube God also drop season-themed items in addition to the standard Cube God loot.

* FullFrontalAssault: As far as we know, it doesn't wear anything on its upper half.

* DualBoss: There are the red Garnet Statue and the green Jade Statue, which will attack together and have the same stats.

!!Lost Sentry
[[quoteright:128:https://static.tvtropes.org/pmwiki/pub/images/lost_sentry.png]]
->''What is this? A subject has broken free from those wretched halls!''
The golem inhabited by the notorious Red Outlaw and the only golem to ever escape the Lost Halls. The golem is defended by the Spectral Sentry, who used its escape as an opportunity to defend the halls. The Sentry is the single deadliest foe that can show up in the Realm, and as such is optional to kill. Drops the portal to the Lost Halls.

* AchillesHeel: Armor Piercing weapons deprive it of its greatest asset - its monumental defense - and make it so that the barrels are only occasionally needed to dispel its invincibility, allowing players to focus more on dodging and exploiting safe spots in its patterns. If you bring one with good range like a Crystal Wand or Tezcacoatl's Tail, the fight goes from reasonably difficult to trivial.

* HeavilyArmoredMook: Well, boss, but the Nightmare Colony has 5000 DEF, essentially making any weapon without an Armor Pierce ability deal only 15% of its original damage. To alleviate this, players must hit it with the explosive barrels in its room.

* SuperMode: After defeating the Moonlight Dancers and talking to Village Girl Umi (who serves as the players' guide in the dungeon), she may ask if you wants to see something interesting. Saying yes will cause her to transform into Kitsune Umi for a final performance, an optional boss that is even harder than the Moonlight Dancers.

* ActionBomb: Water Mines, which try to approach players to detonate themselves.

* MarathonBoss: The Lost Sentry has a towering 125,000 base HP only exceeded by the Avatar and the Appetizer[[note]]Seasonal bosses, scale more drastically, however[[/note]] along with an above-average 40 DEF. With the constant BulletHell he sprays in all directions and the invincible Spectral Sentry patrolling the area, it's already enough of a chore getting close to him, even for longer-ranged classes. And when you do get within firing range, you have to deal with his enormous health bar and devastating attacks up close and personal.

* EliteMooks: You can sometimes find Native Sprite Gods in this dungeon, which are nearly identical to their Godlands counterpart except that they don't spawn Sprite Children (so you can't open a portal to the Sprite World in a Sprite World).

* WolfpackBoss: If a Crab Rave modifier is currently active within a Deadwater Docks, the Calamity Crab found in the dungeon will instead be replaced a group of several Commotion Crabs. While a Commotion Crab is weaker than the Calamity Crab, the threat of multiple coming from different directions encourages players to be even more wary of being cornered.

!!Moonlight Dancers

* DanceBattler: The Moonlight Dancers' performance is quite lethal to the living. Ensure you are able to keep up with their pace or you might end up joining the dead.

* EliteMook:
** In the Lost Halls proper, the Commanders of the Crusade, Champions of Oryx, Grotto Blobs and Tormented Golems all deal very high damage and are capable of summoning minions.
** In the Cultist Hideout, the Followers of Valus and Followers of Phaedra show up rarely and are stronger than the followers of the five surviving cultists.
** In the Void, Greater Void Shades are powerhouses which must either be manually summoned by the Void Entity or evolve from Void Shades.

* OneHitPolykill: All of Avalon's attacks can pierce through players.

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* OneHitPolykill: Nearly all of Null's attacks can pierce through players.

* BladeOnAStick: Her weapon of choice is a golden trident. She is seen using it in some of her attacks.

* NighInvulnerable: During her dying rage phase, she has a whopping 960000 HP, making her nearly impossible to kill quickly. This however is made redundant by the fact that she self-terminates a few seconds later.

* BonusBoss: Is a Treasure Room Boss that drops the Cultist Hideout.

* PreFinalBoss: The Stone Guardians must be defeated in order to open the way to Oryx's Chamber where the FinalBoss resides

* OneHitPolykill: Nearly all of Tezcacoatl's bullets can pierce through players.

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!!Malus (and the Cult)
[[quoteright:100:https://static.tvtropes.org/pmwiki/pub/images/malus_4.png]]
->''Azamoth will protect me!''
The leader of the team assigned with the task of constructing the Marble Colossus. When it became corrupted, he escaped underground with his colleagues and began using their magic to seal the corruption in the halls. Along the way, he became a worshiper of a demonic force named Azamoth along with his fellow cultists.

Malus, along with 4 other cultists (Argus, Basaran, Gaius, and Dirge) serve as the bosses of the secret Cultist Hideout. The 5 of them initially fight together (along with the demons Molek and Balaam), but later Malus absorbs them, empowers himself, and becomes the main boss.

* AllYourPowersCombined: In the second half of his fight, he absorbs the power of his 4 Cultist followers to gain their powers.
* BiblicalBadGuy: Molek and Balaam are two demons originating from Literature/TheBible. In-story, they're mythical demons who demand fiery sacrifice and can see the past and future respectively, who derive inspiration from their original Biblical roots as a false god of flame and a fallen prophet respectively.
* BigRedDevil: Molek, one of the demons spawned by the cultists during their fight, is a big red-skinned HornedHumanoid.

* ElementalPowers: Normally only uses one element, but after absorbing the powers of his Cultist brethren he gained theirs as well.
* FlunkyBoss: Molek, the first demon summoned by the cultists, can summon Fire Demons, Ice Demons and Lightning Demons. In Malus' second form, he also summons a number of smaller flunkies on a timer.
* TheFaceless: His face is always hidden by his hood.
* GlowingEyesOfDoom: Malus' eyes glow brightly red after his fellow cultists sacrifice themselves to empower him. The glow in his eyes will change depending on whose powers he's channeling.
* HeroAntagonist: Despite his methods, his end goal is still to keep the Void Entity restrained within the Halls for the safety of mankind, yet the players must kill him in order to face the Void Entity himself. He actually willingly gave up his life for this cause in his lore, [[MyGodWhatHaveIDone after witnessing what happened to the Marble Colossus as a result of his mistakes]].
* AnIcePerson: Basaran attacks with ice.

* MultipleHeadCase: Balaam, the second demon summoned by the cultists before they sacrifice themselves to empower Malus, has three heads. He can divide into three one-headed versions on his first death.
* NiceJobBreakingItHero: Malus was so [[WellIntentionedExtremist hell-bent on completing the Marble Colossus]] that he disagreed with the church's moderation of their ethical standards, eventually violating the restriction against using unwilling souls for his experiments. This act tainted his soul with impurity, which in turn allowed the Void Entity to manifest through him and possess the Marble Colossus when it was about to be activated.
* PlayingWithFire: Malus' own power is fire-based, as are the attacks of Molek, one of the demons spawned by him and his followers.

* PosthumousCharacter: Two of Malus' colleagues, named Valus and Phaedra, were killed by the Void Entity when it first possessed the Marble Colossus. Their followers still appear as enemies in the Cultist Hideout alongside those of the five surviving cultists, and sometimes the Cultist Hideout can spawn with a side room where their remains were interred.
* ReligionOfEvil: Is the leader of a cult that follows a very powerful demon god. Hell, his boss room even has a pentagram in it.

* ShoutOut: His name and all of the cultists' names are identical to a number of Colossi in VideoGame/ShadowOfTheColossus.

* BossRoom: He is fought in the Void, whose only resident is himself.

* DamageSpongeBoss: His ''base health'' alone is higher than most other bosses in the game at 300,000, and his scaling only sends his HP skyrocketing to obscene levels.

* UpgradedBoss: A secret Hard Mode requires players to undertake a series of hidden tasks and is substantially higher in difficulty, but drops increased loot:

* AuthorityEqualsAsskicking: The king of the Shattered Kingdom who packs the leadership skills and immense magical power to match.

[[caption-width-right:144:[[labelnote: Hat God]] https://static.tvtropes.org/pmwiki/pub/images/jolly_sphinx.png[[/labelnote]]]]

* BossOnlyLevel: The Court of Oryx dungeons (except the Secluded Thicket), the Machine, Beachzone, the Void, heroic dungeons, Belladonna's Garden, Moonlight Village and the Rehearsal version of The Shatters have no enemies other than a boss and its summoned minions (or in case of the Moonlight Village, one boss fight consisting of three individual bosses).

[[folder:Multiple Dungeons]]
!!Prismimic
[[quoteright:100:https://static.tvtropes.org/pmwiki/pub/images/prismimic.png]]
->''Thank you kindly for the demonstration of that being’s powers, litle ones. Care for a test? Heeheehee!''
A particularly promising creation of the Crystal Entity, intended to use their copying powers to silently replace the Realm's population. A skilled user of illusionary light manipulation magic, the Prismimic has the ability to copy the appearance and powers of other entities. Appears in specific events, observing dungeon bosses to learn about their powers.

* ClippedWingAngel: When you destroy the Attacker, the Defender loses most of its power. The only transformation it can manage after that is [[WarmupBoss Dreadstump the Pirate King]].
* DittoFighter: The Prismimic copies the appearance and attacks of various other bosses.
* DualBoss: The Prismimic will divide into an Attacker and Defender at the start of the fight. Each has different stats and a different array of bosses they can change into.
* EyelessFace: The Prismimic's head is just a featureless prism.
* MasterOfIllusion: Uses light magic to produce realistic illusions and copy the forms of other bosses.
* OffWithHisHead: The Prismimic prism states that it's the Prismimic's head, cut off and repurposed.
* RareRandomDrop: In addition to UT drops of the bosses it mimics, the Prismimic Attacker can drop the Mimicry Trap, while the defender can drop a prism named after itself.
* SiliconBasedLife: Again, as a creation of the Crystal Entity.

[[caption-width-right:250:[[labelnote: Crystal Worm Rudolph]] https://static.tvtropes.org/pmwiki/pub/images/worm_rudolph.png[[/labelnote]]]]

* BossBonanza: The majority of dungeons have a single proper boss and optionally treasure room(s) home to either an especially powerful [[EliteMooks Elite Mook]] or a second boss, with the exception of the following dungeons: Haunted Cemetery (5 bosses), The Third Dimension (2), Lair of Draconis (5), The Shatters (3 mandatory, 2 optional), Kogbold Steamworks (2), Secluded Thicket (3), Battle for the Nexus (4), all four Alien Planets (3), Mad God Mayhem (4), Hidden Interregnum (4), and Lost Halls (5). Oryx's Castle and Chambers have 2 boss fights by default (the Stone Guardians and Oryx 1, plus the optional Janus the Doorwarden), and players can fight up to 6 more in a full run from Oryx's Castle to the Wine Cellar and Oryx's Sanctuary.

* UpgradedBoss: Defeating [[spoiler:Nox after letting him use his balance finale]] will prompt a fight against the King using his true name, [[spoiler:King Azamoth]]. This version of the fight has a new intermission phase and a harder desperation attack, but in addition to dropping doubled loot, will guarantee that one person gets the Chrysalis of Eternity, an item exclusive to his fight.

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* BossOnlyLevel: The Court of Oryx dungeons (except the Secluded Thicket), the Machine, Beachzone, the Void, heroic dungeons, and Belladonna's Garden have no enemies other than a boss and its summoned minions.

[[folder:Lost Halls]]

* BossInMookClothing: Lucky Gods spawn extremely rarely, but have health comparable to a dungeon boss, significantly higher DEF, and much more dangerous attacks that fire in more complex patterns, often requiring an effort from multiple players to take down. The Headless Horseman, Great Owl, Sting Spider, and Corsair Crab have even higher stats than the Lucky Gods, but spawn slightly more commonly.
* EliteMooks: Gods are the most powerful and toughest monsters in the Realm. Standing out are Lucky Gods (more powerful remixed versions of gods), Headless Horsemen, Sting Spiders, Great Owls and Corsair Crabs, who are even more powerful than standard gods and always drop a dungeon portal (plus a potion in case of Lucky Gods).

* RareRandomDrop: All of them can drop Stat Potions, namely Defense, Attack, and Speed, making farming Gods a moderately effective way to get them (at least the 3 they drop), especially for brand new level 20 characters that are not yet strong enough to tackle the Puppet Master's Theatre and the Toxic Sewers. Many of them also have a small chance to drop dungeon portals as well. Lucky Gods however are guaranteed to drop their respective dungeons and are guaranteed to drop a Stat Potion for at least one player.

* BossBonanza: The majority of dungeons have a single proper boss and optionally treasure room(s) home to either an especially powerful [[EliteMooks Elite Mook]] or a second boss, with the exception of the following dungeons: Haunted Cemetery (5 bosses), The Third Dimension (2), Lair of Draconis (5), The Shatters (3 mandatory, 2 optional), Secluded Thicket (3), Battle for the Nexus (4), all four Alien Planets (3), Mad God Mayhem (4), and Lost Halls (5). Oryx's Castle and Chambers have 2 boss fights by default (the Stone Guardians and Oryx 1, plus the optional Janus the Doorwarden), and players can fight up to 6 more in a full run from Oryx's Castle to the Wine Cellar and Oryx's Sanctuary.

** During Christmas, the Hermit God becomes the Hat God (which is a living Santa hat), the Pentaracts are replaced by Frostaracts (giant snowmen), while the Rock Dragon becomes the Festive Rock Dragon (whose eye has antlers, body segments are presents, and tail is a Christmas sleigh).

->''Shiver me timbers! No landlubber will best the Pirate King!''

** During Christmas, the Hermit God becomes the Hat God (which is a living Santa hat), the Pentaracts are replaced by Frostaracts (giant snowmen), while the Rock Dragon gains reindeer antlers on its eye, its body segments are presents, and its tail is a Christmas sleigh.

* TimeLimitBoss: If the five towers are not killed fast enough, they all respawn.

* HostileWeather: The Ghost Ship can summon Tempest Clouds that circle around it and fire lightning at nearby players.

* MookMedic: Ancient Monoliths heal all enemies in a large range by roughly 200 HP per second.

* PinataEnemy: The Crawling Depths' treasure room contains destructible eggs, all serving as mini-chests with a small chance of dropping loot (or a minor enemy on rare occasion).

* PosthumousCharacter: Two of Malus' colleagues were killed by the Void Entity when it first possessed the Marble Colossus. They were named Valus and Phaedra, whose followers still appear as enemies in the Cultist Hideout alongside those of the five surviving cultists.

* UpgradedBoss: Defeating [[spoiler:Valen]] and destroying a special Source generator hidden in the Alchemy Lab will activate a fourth Magi-Generator, prompting a new fight against the Archmage using his true name, [[spoiler:Nox the Wild Shadow]]. This changes the structure of the fight and gives him many more attacks, significantly ramping up its already notable difficulty. However, defeating him yields doubled loot and a guaranteed Twilight Gemstone to one person, and [[spoiler:allows the King to be fought in his Hard Mode variant if Nox's Generators were balanced.]]

* HoldTheLine: One of the attacks he's guaranteed to use in his second form is a screen-spanning barrage of shots from all directions, where players have to survive for some time ''while all healing is disabled.'' [[spoiler:If fought as Azamoth, the phase lasts longer and also inflicts [[DamageIncreasingDebuff Exposed]] for its duration.]]

* RecurringBoss: [[spoiler:On Hard Mode, the Forgotten King's wife (the Crystal Prisoner) reappears as a miniboss, the Shattered Queen, who spawns after the Avatar of the Accursed King is destroyed and must be defeated in order to proceed to the final phase of the fight against her husband. Notably, this version of the Queen is significantly stronger than the Crystal Prisoner albeit with simpler attacks, possibly due to her being a recreation of sorts.]]

* ShroudedInMyth: [[spoiler:The King's true name, Azamoth, is noted by the Realm Eye to be an enigmatic one. Not only does the nigh-omniscient being not know anything about it, it has been attributed to various contradictory sources over history, including monarchs, gods, demons, or even intangible forces of primitive magic. It's almost certain that the Forgotten King is just one of many "Azamoths" that have existed and will exist.]]

* VillainousBreakdown: [[spoiler:As opposed to his ego-induced SanitySlippage in his Accursed form, the second half of his fight as Azamoth has him mumbling incoherently to himself, culminating in an [[MyGodWhatHaveIDone epiphany that his ambition and hubris only brought ruin to him, his kingdom, and his beloved.]]]]

A creation of Dr. Terrible, commisioned as a pet for Oryx and designed to feed off of his undying rage as sustenance. This unusual diet has given it potent psionic and energetic abilities along with a nasty temper, but the beast remains loyal to Oryx despite his complete inability to care for it. Boss of High Tech Terror.

* InvincibleMinorMinion: The M.E.R.V. buggy that cuts across the map while raining fire, and the four turrets that periodically activate in later stages of the fight. The two A.E.G.I.S. orbs also count as this most of the time, buzzing around and trying to shield the switches that make the boss vulnerable.

[[folder:Lost Halls]]

* KillEnemiesToOpen: The wall separating the rooms of the Marble Defender and the Marble Colossus will vanish only when the Marble Defender is killed.

* WeaponOfChoice: Was initially made out to be the aptly named Oryx's Greatsword (dropped by his second incarnation), an ancient blade said to have cut down countless heroes during its ages of use - its predecessor, the Sword of the Mad God, was actually made as a tribute to him and not his actual weapon. However, his real chosen weapon has since been established as [[MeaningfulName Divinity]], a LaserBlade charged with his will to subjugate all before him. Players can loot Divinity for themselves if they get lucky upon defeating his third incarnation, and [[InfinityPlusOneSword it has rarely disappointed those who have obtained it]].

* BeefGate: The Heroic Observer, which is a wall with very high HP and regenerates all missing HP every few seconds, prevents groups without sufficient DPS from accessing Jon Bilgewater's room and makes it almost impossible to solo the dungeon. Removed when the dungeon was reworked

[[folder:The Third Dimension]]

* DegradedBoss: Weaker versions of the Cube God reappear as standard enemies in the Third Dimension, and count toward Lesser God kills.
* EnemySummoner: Cuboid Matriarchs can summon Cuboid Paladins, Rogues and Tricksters at random.
* MookMedic: A Cuboid Paladin periodically heals all nearby Cuboid enemies (including itself) for 200 HP.
* SuperEmpowering: If a Cuboid enemy approaches a Cuboid Matriarch, or if a Square, Cubic Frame, or Cubic Core approaches a Hyper Cube, it will become squared, increasing its size and amplifying its attacks.

!!Masquarerader
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/possible_forms_4.PNG]]
The Treasure Room bosses of the Third Dimension, angular beings in the Third Dimension who take on the forms of existing monsters to battle.

* DittoFighter: Masquareraders mimic the attack patterns of other treasure room bosses.
* LivingPolyhedron: Its original form is simply a blank square.
* MiniBoss: Masquareraders serve as bosses in the Third Dimension's Treasure Rooms.

!!Shadow Cube God
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/cubeblaster_5.png]]

First boss of the Third Dimension. A being born of the Tesseract Goddess' shadow which now guards its master from all harm, slaying it will cause a phenomenon that "squares" every enemy in the dungeon, powering them up. The boss itself consists of a Shadow Cube Defender that protects the colossal Shadow Cube Serpent, the core of which is the Shadow Cube Blaster, who serves as the main boss.

* {{Cyclops}}: Unlike other cubes, the Shadow Cube Blaster has one eye.
* DualBoss: The Shadow Cube God consists of the Shadow Cube Defender and the Shadow Cube Serpent. In its first phase, the Defender is the main target and the Serpent cannot be attacked; once the Defender's HP is depleted, it will turn into the Shadow Cube Overseer, which is invulnerable until the Shadow Cube Blaster is destroyed.
* LivingPolyhedron: Is a cube like everything else in the dungeon, or specifically a ''lot'' of cubes.
* LivingShadow: The Shadow Cube God was born from the Tesseract Goddess' shadow. Despite being a shadow, it still has mass and a very tangible presence.
* SegmentedSerpent: The Shadow Cube Serpent consists of a head segment, a tail segment and 21 body segments, all of which have separate HP bars. The head is invulnerable until the tail and body segments have been destroyed.
* ShockwaveStomp: In its second phase, it can create cross-shaped shockwaves that deal massive damage on contact with the waves. Fortunately, CrosshairAware is in effect.
* StationaryBoss: The Shadow Cube Defender cannot move.

!!Tesseract Goddess
[[quoteright:243:https://static.tvtropes.org/pmwiki/pub/images/tesseract_goddess.png]]
->''"You misshapen miscreants will perish in the lower dimensions, having lost all form!"''
Final boss of the Third Dimension. A fourth-dimensional entity created by Oryx in his experiments with the fundamental building blocks of the world, she maintains the Third Dimension and commands its army of cubes from the plane, as she cannot leave her homeworld for long.

* DoppelgangerSpin: Can spawn a clone of herself in certain phases. She and the clone will charge through the map while firing off shots, although the real one can be distinguished without too much trouble.
* LivingPolyhedron: The leader of the Cubes, who takes the form of a tesseract.
* TurnsRed: When at half health, her body becomes blue, purple and red as she powers up her attacks and minions. Notably, her new color scheme is the same as the UT Dirk of Cronus, which drops from the Cube God.
* WeaksauceWeakness: For all her power, her form is highly unstable out of its home dimension. Leaving for too long would cause her to become undone, confining her to her homeworld.
* WaveMotionGun: Her primary means of attack are gigantic sustained laser beams fired in rings or fans.
[[/folder]]

[[folder:The Nest]]

* BeeAfraid: The Nest, being an elite dungeon, is home to ''dangerous'' bees that should not be underestimated under any circumstances.
* ColourCodedForYourConvenience: The Killer Bees are divided into 3 color categories, each with their own status effects. Reds inflict Armor Break and Confused, Blues inflict Quiet, Weak, and Pet Stasis, and Yellows inflict Paralyze and Dazed.
* EliteMooks: Soldier Bees; all of them are very dangerous, inflict many status effects and can summon smaller bees.
* EnemySummoner: All Soldier Bees can spawn the smaller Killer Bees of the same type. Mini Killer Bee Hives can spawn Killer Bees of all types.
* SmashedEggsHatching: Blue, Red and Yellow Larvae will be spawned in swarms whenever a Maggot Egg is destroyed.

!!Killer Bee Queen
[[quoteright:100:https://static.tvtropes.org/pmwiki/pub/images/killer_bee_queen.png]]
->''Any experiment that I've sent in to try and measure the Queen's strength did not even last a minute...''
Once the Queen Bee, mutated by Dr. Terrible's experiments. Consumed by the Corruption used in her creation, she escaped from the lab where she was created and built up her own murderous colony. Serves as the boss of The Nest.

* AbsurdlySharpBlade: According to her creator's notes, she can cut through his heavily armored robots in a single sting. Considering the robots he was talking about were Enforcer Bots (which have 3500 HP and 30 DEF), that's a pretty damn sharp stinger. When you get the Killer Bee Queen's stinger as a weapon, this becomes even more true. The Queen's Stinger Dagger not only pierces straight through enemies, but cuts through their armor too.
* BeeAfraid: In a world where super-powerful gods and spirits roam freely, this giant, mutated bee might just be one of the hardest bosses the game has to offer. To be fair, it's a bee tainted by the Void.
* BigCreepyCrawlies: Is a giant murderous bee.
* BulletHell: Boasts a ridiculous number of attack types, complex bullet patterns, and the tendency to spam them in rapid succession without any time to breathe.
* ClippedWingAngel: When she's on her last legs, she becomes barely able to move and only able to fire slow rings of shots compared to her regular BulletHell, giving the impression that she's weakened to the point of near helplessness. The three Adolescent Beehemoths will become more aggressive, fighting tooth and nail to defend their downed queen, but it's pretty easy to punch through them and finish her off.
* FlunkyBoss: Can summon smaller Killer Bees in some of her phases, and summons 3 Adolescent Beehemoths to guard her in her last phases.
* GoneHorriblyRight: Dr. Terrible designed her to be the ultimate killing machine, and his experiments were such a success that the Queen broke out of his lab, demolished it, and went off to build her own kingdom. The Realm Eye cites her as the "greatest mistake out of the pantheon of great mistakes" made by the doctor.
* InsectQueen: Unlike the Queen Bee, she looks far more realistic and menacing instead of looking regal and cartoonish.
* PointOfNoReturn: She floods the entrance to her chamber with Killer Honey after she is awakened.
* StatusEffects: The number of shots she has that ''don't'' inflict a debuff can be counted on one hand.
* UpgradedBoss: The Queen Bee from the Hive, mutated by science into a murderous flying superweapon.

!!The Beekeeper
[[quoteright:100:https://static.tvtropes.org/pmwiki/pub/images/beekeeper.png]]
->''You...you will not stop me again!''
An enigmatic being who claims to be the creator of the Killer Bees. Found in a secret room in The Nest. He is actually Dr. Terrible, after getting stuck in the Nest when he tried to reclaim his escaped creations.

* ApocalypticLog: The Beekeeper's computer has a number of Research Logs that it will tell you if you give it the right password, which depicts the Beekeeper's initial desire to create the Killer Bees and how his experiments went wrong.
* BonusBoss: The Beekeeper has no Quest Marker and has to be found by randomly blasting the walls and hoping one breaks open.
* TheFaceless: His face is obscured under a beekeeper's veil.
* FireBreathingWeapon: His primary means of attack is a devastating flamethrower.
* FlunkyBoss: Summons Experimental Soldier Bees.
* GoMadFromTheIsolation: Evidently being trapped in the Nest for about 5 months didn't help his mental state. He eventually started researching simulation theory, and the scariest part is that [[BreakingTheFourthWall he might be right]].
* InvincibleMinorMinion: In his last phase, the Beekeeper summons some invulnerable Experimental Soldier Bees that will self-destruct when he is defeated.
* ThePasswordIsAlwaysSwordfish: After killing him, his computer will ask you for a password. If you noticed the robots around the room and the familiar tiles, it should be kind of obvious what the password is when the computer tells you "It's me."
* TheStarscream: Originally wanted to reclaim the Killer Bees for Oryx. His second-most recent log has him proclaiming that he will take control of the Killer Bees and overthrow Oryx to take over his realm.
* UnskilledButStrong: His attacks boil down to "aim at nearest player with flamethrower." Said flamethrower deals enough damage to shred Knights in seconds.
* VaryingTacticsBoss: The Beekeeper, Dr. Terrible's second incarnation, have a completely different attack pattern compared to his original version.

[[folder:Fungal Cavern]]

* BatOutOfHell: The Cavecrawler Bloodsucker is a giant fungal bat.
* BigCreepyCrawlies: Any enemy that isn't a mushroom or the Cavecrawler Bloodsucker is an oversized arthropod.
* CowardlyMooks: Members of the yellow mushroom group flee from nearby players while firing.
* GiantMook: Every mushroom family has a large mushroom as its designated leader, which is significantly more dangerous than the others.
* MushroomMan: Almost all enemies in the Fungal Cavern are mushrooms that have faces and can move around to kill you.
* PowerCrystal: The Cavern Crystals, which are required to power the drill that leads to the boss.
* SegmentedSerpent: The Cavecrawler Glowworms, Maggots, and Leeches. Players must destroy their body segments to make their heads vulnerable.
* SmashMook: The green Mushroom Brutes, Sporadic Mushrooms and Mushroom Berserkers aggressively charge players as they shoot.
* SquishyWizard: The designated mage of each family, having low HP but dangerous long-ranged attacks.
* TakingYouWithMe: The Cavern Crystals explode into rings of Quieting shards upon destruction.
* ThrowDownTheBomblet: Mushroom Alchemists throw grenades in rapid succession towards nearby players.
* TurnsRed: All big mushroom enemies become dangerous when their HP gets low, in various ways.

!!Crystal Worm Mother
[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/crystal_worm_mother.png]]
Boss of the Fungal Cavern. A creation of the Crystal Entity, designed to be a final line of defense against would-be-invaders trying to get into its chamber.

* AttackItsWeakPoint: Several of its segments are visually cracked. These segments have less health and will not turn invulnerable/heal when the others are destroyed. In fact, breaking two of them is required to push the Worm Mother out of her first phase.
* CrystallineCreature: As a creation of the Crystal Entity, it's entirely made of rocks and crystal.
* DefeatEqualsExplosion: Its segments explode into Quieting shards upon destruction.
* DualBoss: During phase 3 of the fight, the Crystal Worm Mother will turn invulnerable and summon the Crystal Worm Father, which has to be destroyed to make the Mother invulnerable. During phase 4, the Crystal Worm Mother will do the same thing with the Crystal Worm Child.
* GemstoneAssault: All of its attacks have it firing multicolored crystal shards.
* KillEnemiesToOpen: The Crystal Worm Mother drops the portal to the Crystal Cavern.
* SegmentedSerpent: The Crystal Worm Mother consists of a head, a tail and 15 body segments, all of which have their own HP pools. The body segments must be destroyed first (the boss changes phases once enough have been destroyed), then the tail, and finally the head.
[[/folder]]

[[folder:Crystal Cavern]]

* BossInMookClothing: The Crystal Worm Children have half the HP of the one from the Fungal Cavern but are otherwise just as deadly. With long segmented bodies that rapid-fire painful attacks, a dangerous spiral attack from its head once its body is dead, and an effective 24,000 base health across its seven segments, they're a force to be reckoned with.
* CowardlyMooks: Crystallised Crawlers flee from players when not firing.
* CrystallineCreature: Every enemy here is made of gemstones. Even the slimes.
* DegradedBoss: Weaker Crystal Worm Children (the first of which is a miniboss in the Crystal Worm Mother boss fight in the Fungal Cavern) are found as standard enemies throughout the caves.
* EliteMook: The Crystal Monsters (Boomers, Crawlers, Shriekers, Chargers, and Watchers) have nearly twice the health of the smaller enemies, utilize deadlier and more complicated attack patterns, and are immune to most status effects.
* PowerCrystal: The Cavern Crystals like before, but now almost every enemy qualifies.
* RecursiveAmmo: The Crystallised Boomer summons Crystal Buds, which explode into Exposing shards.
* StatusEffects: The Crystal Slimes liberally spam these to make up for their relative lack of strength.
* TakingYouWithMe: The Crystal Bats and Cavern Crystals explode violently upon death.

!!Crystal Entity
[[quoteright:175:https://static.tvtropes.org/pmwiki/pub/images/crystal_entity.png]]
->''You cannot...shatter...PERFECTION!''
Boss of the Crystal Cavern. A mystifying subterranean being worshiped by the local mushroom tribes as a god of life, it has the ability to create sentient, lifelike constructs out of inanimate crystal.

* ActionBomb: Both it and its Crystallised Monstrosity can summon Crystal Flowers, which chase players while leaving a trail of slowing shots, before flowering and exploding into crystal shards.
* AmbiguouslyEvil: While it created the Prismimics and Crystal Towers with the seeming intention of invading the Realm, its boss dialogue and actions point towards a being that just wants to be left alone with its crystal spawn and mushroom worshippers. When first discovered by the mushroom tribes, it immediately made peace and lived peacefully with them for countless centuries until Steamhammer disturbed them, only retaliating when the dwarves invaded the Crystal Cave and tried to mine its minerals. Whether it's Realm-invading shenanigans were an ulterior motive, a one-off thing, non-canon events, or outright retconned is unknown.
* BossBonanza: During the first phase of the fight, the Crystal Entity spawns either the Crystallised Cyclops or Crystallised Lizard, which must be defeated before the Crystal Entity becomes vulnerable. At 75% health, the Crystal Entity turns invulnerable again and spawns either the Crystallised Fish or Crystallised Scorpion, which must be defeated. When the Crystal Entity reaches 50% health, the player must defeat its final summoned guardian, the Crystallised Monstrosity.
* BulletHell: In its final phase, the Entity and its familiars are more than capable of flooding the screen with shots from every direction. The Crystal Entity does not kill instantly--it kills by overwhelming players with sheer bullet density.
* CrosshairAware: The Crystal Scorpion has an attack where it generates moving crosshairs all over the arena. Touch one, and it'll cause a crystal spike to erupt from underneath, causing huge damage.
* CrystallineCreature: It has the ability to build crystalline constructs capable of mimicking organic life. All of the enemies in the Crystal Cave, along with the Crystal Worms, the Prismimic and its Crystal Guardians, are its creations.
* EldritchAbomination: Almost nothing is known about the Crystal Entity itself or its origins, not even by the Realm Eye - the closest we get to its background is Guill referring to it as an "evil crystal demigod". The only real pieces of information given about it are that it flip-flops between benign and malicious towards life on the surface[[note]]And even then, its goals are ambiguous - while the Crystal Towers point towards a desire to invade and destroy it, the Prismimics were designed to silently replace the population instead[[/note]] (see AmbiguouslyEvil above) and can freely create SiliconBasedLife. The release of the Keyper and the reveal that the Crystal Entity can create dungeon keys at will (effectively keys that can open entrances to any location), and can make an item (the Crystal Key) that can inexplicably open any locks raises further questions about the extent of its abilities.
* GemstoneAssault: It fittingly fires volumes of crystals and prisms to attack.
* InvincibleMinorMinion: Summons an array of Pulse Locks in its vulnerable phase, red crystals which form into shards and launch themselves at nearby players before regrowing. As it loses health, the shots from the Pulse Locks will fly faster and farther.
* MesACrowd: Its Crystallised Scorpion has the ability to vanish and summon a horde of docile small scorpions. One is bigger than the others, and killing it will reveal the true Scorpion. Killing a fake will cause it to [[ActionBomb explode]] into a ring of potentially lethal shards.
* OneToMillionToOne: At 70% HP, the Crystallised Scorpion splits into a large number of miniature scorpions. One of the scorpions, which is substantially larger than the others and flashes, must be targeted and killed by the players. When one of the other scorpions is killed, it explodes into a very dense ring of crystal shards.
* RecursiveAmmo: One of the Crystal Entity's most notable attacks is a large white bullet which explodes into a ring of blue bullets, which each explode into rings of red bullets. Some of these red bullets will further split into rings of purple bullets. Getting directly hit by the attack is usually fatal.
* RoyalWe: The Crystal Entity refers to itself with the pronoun ''we''.
* SequentialBoss: Immediately after the fight with the Crystal Entity starts, it will turn invulnerable and spawn one of the five crystal guardians, which must be targeted and killed. Once a guardian is killed, the Entity will spawn another one; three in total will be spawned.
* ShieldedCoreBoss: Won't become vulnerable until three Crystal Guardians are slain.
* ShockAndAwe: Its only attack that doesn't involve crystals is firing rings of curving lightning bolts that pierce armor.
* StationaryBoss: Does not move.
* TeleportSpam: Its Crystallised Fish will teleport between every attack.
* TimeAbyss: The Crystal Entity is one of the most ancient beings in the Realm, having been already ingrained deeply in its mantle when many of the other primal gods of the Realm had only been born relatively recently.
* ThinkingUpPortals: Has a mysterious ability to create dungeon keys at will, which are effectively items that can open portals to anywhere. The nature of this ability is never elaborated on.
[[/folder]]

[[folder:Lost Halls]]

* AndIMustScream: The foreign inhabitants of the Lost Halls are trapped in a curse that keeps them alive and conscious, but forces them to fight whenever they are approached by an unfamiliar entity. This includes future explorers who may very well be trying to rescue them.
* BlobMonster: Grotto Slimes and Grotto Blobs.
* TheDreaded: Even Oryx fears the inhabitants of the Halls.
* EliteMook:
** In the Lost Halls proper, the Commanders of the Crusade, Champions of Oryx, Grotto Blobs and Tormented Golems all deal very high damage and are capable of summoning minions.
** In the Cultist Hideout, the Followers of Valus and Followers of Phaedra show up rarely and are stronger than the followers of the five surviving cultists.
** In the Void, Greater Void Shades are powerhouses which must either be manually summoned by the Void Entity or evolve from Void Shades.
* EnemySummoner: All group leaders except for the Tormented Golem can summon more minions when harmed. Followers of Valus can summon Fire, Ice and Lightning Demons.
* FallenHero: The enemies are all Realmers and servants of Oryx alike who are cursed with borderline immortality and forced to fight anything that comes after them, even their former allies.
* {{Golem}}: The Lost Golems, obviously.
* HeavilyArmoredMook: Oryx Armorbearers essentially function as meatshields for the Champion, having rather high health and an effective DEF of 60. Tormented Golems have a whopping 1000 DEF, making most weapons deal ScratchDamage to them - although they Armor Break themselves every few seconds to compensate.
* ImplacableMan: The Spectral Sentry cannot be killed by any means, is incredibly fast, and delivers near-lethal damage and numerous status effects with each attack. If it sees you, your only option is to run for your life and hope you can outlast it.
* InvulnerableAttack: Oryx Admirals can turn invulnerable and dash into the middle of player groups to cause confusion.
* LifeDrain: All Cultist followers have a lifesteal property that allows them to heal for 100% of damage dealt, so make sure to dodge their attacks!
* RedEyesTakeWarning: All Crusader enemies have red eyes, signifying how their sanity departed long ago.
* TurnsRed: As they lose HP, various enemies in the Lost Halls will flash red and become more dangerous in numerous ways.

!!Marble Defender
[[quoteright:132:https://static.tvtropes.org/pmwiki/pub/images/marble_defender.png]]
->''Your confidence is greatly misplaced, heroes.''
A previous model of the Marble Colossus, focused on defense rather than offense. When the Void Entity took over the White Titan, the Marble Defender swore to keep it locked in at all costs. Found blocking the entrance to the Marble Colossus.

* ArmorPiercingAttack: All of its attacks pierce armor.
* BladeOnAStick: The Marble Defender fires constant rows of spears from the line of statues lining the wall. He can also fire more from the back corners of the room in his last phase.
* {{Golem}}: A living construct made of marble.
* HeroAntagonist: The Marble Defender wishes to protect you from the evil that has possessed the Marble Colossus.
-->'''Marble Defender:''' "I wish only to protect you. Forgive me, but I have no other choice."
* KillEnemiesToOpen: The wall separating the rooms of the Marble Defender and the Marble Colossus will vanish only when the Marble Defender is killed.
* PowerNullifier: All of its attacks inflict Silence, disabling player abilities.
* StationaryBoss: Can't move.

!!Marble Colossus
[[quoteright:128:https://static.tvtropes.org/pmwiki/pub/images/marble_colossus_2.png]]
->''Look upon my mighty bulwark.''
A nearly omnipotent golem that was the result of years of painstaking research, created for a single purpose: to destroy Oryx once and for all. It was corrupted and taken over, and now serves as the main boss of the Lost Halls.

* ActionBomb: The Marble Colossus Rocks follow players, and when close enough, explode into rings of shots that do heavy damage.
* BulletHell: Especially evident during some of his last phases, where the room will seem more projectile than background.
* TheCorruption: During his final phase, the Void will slowly start taking him over as he takes damage, visually represented by his golden parts being tainted with deep purple and his gold attacks being replaced by Void-based ones.
* FlunkyBoss: Has 4 Pillars that constantly respawn and fire status shots. He also can summon small invincible satellites to further flood the room with shots.
* GoldAndWhiteAreDivine: The Marble Colossus is primarily light-grey and gold (with its items straight up being white and gold), and was designed to be a godlike golem capable of felling Oryx himself.
* {{Golem}}: Made of marble, obviously.
* GoneHorriblyRight: The Marble Colossus was the product of years of research to create the ultimate weapon that could take down Oryx once and for all, which of course caused a lot of problems when it became possessed.
* GratuitousLatin: He uses Latin phrases in a lot of his dialogue.
* KillTheGod: Its sole purpose is to fight and kill Oryx the Mad God.
* LaserGuidedKarma: Its possession served as this for Malus. [[TooDumbToLive It's not exactly wise]] to stuff a divine, heroic construct full of the souls of criminals in a world where AllMythsAreTrue.
* LightIsNotGood: A bright white marble golem which happens to get possessed by the Void Entity.
* LightningBruiser: He can move a lot faster than you would think he could. In some instances, he can dash across the entire room.
* MarathonBoss: Boasts almost 200k base HP, 50 DEF and various periods of invulnerability, making him extremely durable and a very tough foe to take down.
* PointOfNoReturn: The entrance to the Marble Colossus' room seals off a short time after he's activated, making it impossible to fight both him and the Cultists (who are located behind a similar PointOfNoReturn) during the same Lost Halls run.
* PhysicalGod: Described as "omnipotent" in the Journal of the Crusade Commander, and developers have referred to it as a god-golem. It certainly seems powerful enough to support this, as it was specifically designed to kill Oryx of all people. Also, killing him counts towards God Kills.
* SoulPower: Originally supposed to be powered by a human soul. It is now controlled by the Void Entity.
* ShieldedCoreBoss: During a few of his phases, the Marble Colossus turns completely invulnerable and players must focus on avoiding his attacks and destroying the golden Marble Cores around the room.
* TakingYouWithMe: His final Marble Core phase, a brutal phase where you must dodge his rotating OneHitKill lasers and spray of bombs/shots until you can take out the Cores protecting him.
--> '''Marble Colossus:''' "You...YOU WILL COME WITH ME!"

!!Agonized Titan
[[quoteright:128:https://static.tvtropes.org/pmwiki/pub/images/agonized_titan.png]]
->''I will not let you release this calamity upon the world!''
A golem that served as the first prototype of the Marble Colossus, abandoned due to its weakness and recycled for various other experiments. The secret boss of the Lost Halls, it is activated by dragging 5 pink flames located in the halls to him. When killed, he unlocks an entrance to the Cultist Hideout.

* BonusBoss: Is a Treasure Room Boss that drops the Cultist Hideout.
* FlawedPrototype: He apparently is the first prototype of the Marble Colossus, discarded for being too weak and cowardly.
* FlunkyBoss: Once the Agonized Titan reaches about 1/3 of its HP, it will begin spawning large groups of Evil Spirits from itself.
* {{Golem}}: The earliest version of the Marble Colossus.
* KillEnemiesToOpen: Killing the Agonized Titan opens the portal to the Cultist Hideout where Malus, his colleagues and their followers hide.
* PuzzleBoss: Not the boss himself, but how to activate him: 5 of the pink flames throughout the dungeon must be found.
* SoulPower: He activates by absorbing 5 of the passive Evil Spirits found in the dungeon.
* StationaryBoss: Cannot move.
* UnskilledButStrong: His attacks consist of basic rings of shots. Said rings of shots are deceptively fast and do huge amounts of damage.

!!Malus (and the Cult)
[[quoteright:100:https://static.tvtropes.org/pmwiki/pub/images/malus_4.png]]
->''Azamoth will protect me!''
The leader of the team assigned with the task of constructing the Marble Colossus. When it became corrupted, he escaped underground with his colleagues and began using their magic to seal the corruption in the halls. Along the way, he became a worshiper of a demonic force named Azamoth along with his fellow cultists.

Malus, along with 4 other cultists (Argus, Basaran, Gaius, and Dirge) serve as the bosses of the secret Cultist Hideout. The 5 of them initially fight together (along with the demons Molek and Balaam), but later Malus absorbs them, empowers himself, and becomes the main boss.

* AllYourPowersCombined: In the second half of his fight, he absorbs the power of his 4 Cultist followers to gain their powers.
* BiblicalBadGuy: Molek and Balaam are two demons originating from Literature/TheBible. In-story, they're mythical demons who demand fiery sacrifice and can see the past and future respectively, who derive inspiration from their original Biblical roots as a false god of flame and a fallen prophet respectively.
* BigRedDevil: Molek, one of the demons spawned by the cultists during their fight, is a big red-skinned HornedHumanoid.
* CastingAShadow: Argus' attacks have a dark tint to them, but his magic is specifically stated to revolve around destabilization rather than darkness. The posthumous Valus was the actual user of dark magic.
* ElementalPowers: Normally only uses one element, but after absorbing the powers of his Cultist brethren he gained theirs as well.
* FlunkyBoss: Molek, the first demon summoned by the cultists, can summon Fire Demons, Ice Demons and Lightning Demons. In Malus' second form, he also summons a number of smaller flunkies on a timer.
* TheFaceless: His face is always hidden by his hood.
* GlowingEyesOfDoom: Malus' eyes glow brightly red after his fellow cultists sacrifice themselves to empower him. The glow in his eyes will change depending on whose powers he's channeling.
* HeroAntagonist: Despite his methods, his end goal is still to keep the Void Entity restrained within the Halls for the safety of mankind, yet the players must kill him in order to face the Void Entity himself. He actually willingly gave up his life for this cause in his lore, [[MyGodWhatHaveIDone after witnessing what happened to the Marble Colossus as a result of his mistakes]].
* AnIcePerson: Basaran attacks with ice.
* InTheHood: All five cultists and their followers wear hoods that obscure their face.
* LifeDrain: All of the Cultists' attacks steal HP.
* LightEmUp: Dirge uses light attacks.
* MultipleHeadCase: Balaam, the second demon summoned by the cultists before they sacrifice themselves to empower Malus, has three heads. He can divide into three one-headed versions on his first death.
* NiceJobBreakingItHero: Malus was so [[WellIntentionedExtremist hell-bent on completing the Marble Colossus]] that he disagreed with the church's moderation of their ethical standards, eventually violating the restriction against using unwilling souls for his experiments. This act tainted his soul with impurity, which in turn allowed the Void Entity to manifest through him and possess the Marble Colossus when it was about to be activated.
* PlayingWithFire: Malus' own power is fire-based, as are the attacks of Molek, one of the demons spawned by him and his followers.
* PointOfNoReturn: Once you enter the cultists' hideout, you can't return to the Lost Halls.
* PosthumousCharacter: Two of Malus' colleagues were killed by the Void Entity when it first possessed the Marble Colossus. They were named Valus and Phaedra, whose followers still appear as enemies in the Cultist Hideout alongside those of the five surviving cultists.
* ReligionOfEvil: Is the leader of a cult that follows a very powerful demon god. Hell, his boss room even has a pentagram in it.
* ShockAndAwe: Gaius uses lightning attacks.
* SequentialBoss: When the battle begins, all five cultists will engage in battle with players. When enough damage is dealt to a cultist, he will teleport back to his original location. Once all 5 cultists have taken sufficient damage, they will summon the demon Molek and disappear. Once Molek is dead, the cultists will re-engage the players, and this time after having taken enough damage they'll summon the second demon Balaam. When Balaam is defeated, the cultists will fight again, and this time once enough damage is dealt to all of them Basaran, Gaius, Dirge and Argus will sacrifice themselves to superpower Malus, starting the final phase of the fight.
* ShoutOut: His name and all of the cultists' names are identical to a number of Colossi in VideoGame/ShadowOfTheColossus.
* TeleportSpam: Him and his fellow cultists love doing this.
* {{Tulpa}}: According to the Realm Eye, Molek and Balaam aren't actually the real deal or even naturally-occurring demons with these names, but constructs created from Malus' imagination and Azamoth's power. It ''is'' lonely down there, after all.
* TurnsRed: Once all the Cultists are weak enough, they will sacrifice themselves to empower Malus, jacking up his HP and power, healing him to full, giving him more DEF and immunities, and letting him use all their powers at once.
* WellIntentionedExtremist: In his lore, he was one of the main creators of the Marble Colossus, and was willing to do anything to perfect the golem, even secretly taking souls from outlaws against their will. This ended up being his downfall, as it left his soul impure and gave the Void Entity the opportunity to ambush them.
* WolfpackBoss: Malus fights alongside his fellow Cultists during the first half of the fight. Balaam, the second demon summoned by them, will split into 3 versions of himself when his initial HP pool is depleted, each with one of the attacks used by his combined form.

!!Void Entity
[[quoteright:176:https://static.tvtropes.org/pmwiki/pub/images/void_entity.png]]
->''Those who enter my realm have little value of their lives.''
A tremendously powerful spirit of malice and the embodiment of evil itself, born alongside the genesis of the universe itself. Not much is known about this enigmatic foe besides his immense power, devious cunning and his desire to see the Realm annihilated. He is the boss of the Void, a secret area in the Lost Halls accessed by using a Vial of Pure Darkness on the Marble Colossus' death location, and is the TrueFinalBoss of the whole Lost Halls complex.

* AsLongAsThereIsEvil: He claims that, as the embodiment of human sin, he can never be truly destroyed. Fittingly enough, he can seemingly manifest in places where any "impure" intent is present, as he did with Malus.
* BossRoom: He is fought in the Void, whose only resident is himself.
* BulletHell: Has a wide variety of projectiles to throw at you, and he fires them in large quantities.
* TheChessmaster: For all his immense power and army of corrupted souls, his physical form can only be manifested in the Void. So, he's orchestrated a number of schemes to take control of a physical vessel and obliterate the Realm, one of his most prominent ones being possessing the Marble Colossus and Forgotten King.
* DarkIsEvil: He's [[PurpleIsTheNewBlack dark purple]] and intent on destroying the realm.
* DamageSpongeBoss: His ''base health'' alone is higher than most other bosses in the game at 300,000, and his scaling only sends his HP skyrocketing to obscene levels.
* DealWithTheDevil: One of the Void Entity's tactics, offering beings in the mortal plane great power in exchange for souls, servitude, or outright allowing him to possess their forms. If the Twilight Archmage is any indication, he's also not above [[YouHaveOutlivedYourUsefulness backstabbing and discarding his "clients" if he thinks he no longer needs them]].
* DemonicPossession: Can corrupt others and turn them into his vessels.
* FinalBossNewDimension: You venture into the Void, a dimension manifested by Pure Evil, to face off against the Lost Halls' TrueFinalBoss.
* FlunkyBoss: Constantly summons Void Fragments, Void Shades and Greater Void Shades.
* GeniusBruiser: Has had a hand in a number of events within the Realm such as the possession of Esben and the corrupting of the Forgotten King. When encountered in person, he quickly proves that he is more than powerful enough to back up his plans.
* HeadsIWinTailsYouLose: Why he considers Malus to be under his influence despite the latter spending most of his life trying to run from him. Either the Void Entity fully consumes the Cultists after previously killing Valus and Phaedra, or they try to fight back and [[GoMadFromTheIsolation snap on their own]]; ultimately, the latter scenario prevailed as Malus and the other head cultists ended up consulting Azamoth and constructed a ReligionOfEvil around him and the puppets made through his power.
* HoldTheLine: His survival phase, about a minute of survival hell where he spams all manner of shots, the weakest of which inflict 300 damage, all while spawning Greater Void Shades.
--> '''Void Entity:''' "ALL NOW ENDS!"
* IncreasinglyLethalEnemy: The mostly harmless Void Fragments, if left alive long enough, will evolve into the not-as-harmless Void Shades, which then evolve into the definitely-not-harmless Greater Void Shades.
* LightningBruiser: He's pretty damn fast for his bulk.
* MesACrowd: Clones himself in his final phase.
* MadeOfEvil: Is the spiritual embodiment of evil and sin.
* TheManBehindTheMan: The Void Entity boasts that he has touched the Crystal Prisoner, the Golden Oryx Effigy, the Puppet Master 2, the Forgotten King, Esben the Unwilling, the Killer Bee Queen and Malus.
* NoSell: Is the only boss with ''complete immunity to almost every single negative status effect.'' Yes, that includes Armor Broken and Curse, which no other boss has immunities to. The only things he can't nullify are Bleeding (which does next to nothing to him) and Exposed.
* OmnicidalManiac: Unlike most of the Realm's villains, he doesn't seek things like riches, fame, conquest, or authority. He is only motivated by the desire to completely and utterly annihilate the Realm.
* PowerOfTheVoid: Of course. All of his attacks are purple energy blasts and the like.
* PurpleIsTheNewBlack
* ShapeshifterSwanSong: Rapidly shapeshifts into the forms of a number of bosses he either possessed or influenced during his death sequence.
* ShoutOut: His initial quote upon activation brings [[VideoGame/SuperPaperMario Shadoo]] to mind.
* TimeAbyss: Claims he's been around for ''eons'' scheming up the world's destruction - for reference, Oryx is implied to have been tyrant for a few decades at most. It was later revealed that he's actually one of the ''first beings to ever come into existence.''
* TimeLimitBoss: His arena is slowly consumed by Pure Evil over the course of the fight, giving you a few minutes to push him into his last phases.
* TrueFinalBoss: Of the Lost Halls. While the Marble Colossus is the main boss of the dungeon, after you defeat him you can use the Vial of Pure Darkness dropped by Malus to reach the Void where the Void Entity resides, meaning that he can only be encountered after having defeated all three previous bosses and is the ultimate challenge of the dungeon. And oh boy does he waste no time proving that to you when you fight him.
* YourSoulIsMine: Claims particularly powerful souls from Skuld, transforming them into his mindless puppets.
[[/folder]]

[[folder:The Shatters]]

* AttackReflector: Royal Jesters can deflect player attacks by countering them with their own magic blasts.
* BeardOfEvil: Glacier Archmages have quite prominent beards.
* ChainPain: King's Gladiators can hurl out giant chains of blades to restrict the movement of players.
* DropTheHammer: Hollow Smiths and Hollow Masons throw spreads of hammers at players.
* EliteMooks:
** Cryo and Pyro Warlocks are the strongest members of the ice/fire mages respectively, having the highest stats and most varied attack patterns. Fittingly, they appear a lot less commonly than the others and have exclusive drops.
** The Shatters Royal Guard, which only appears in the last section of the dungeon, are this in-universe and in-game. They're among the sturdiest of the enemies one can find in the dungeon, as well as easily the most agile and hard-hitting.
** Eyes of the King are rare enemies which are significantly stronger than most of the regular ones. The Accursed variant in particular has a devastating attack and an AntiRegeneration aura that darkens the screen and stops all healing in its presence.
* AnIcePerson: Ice mages make up a large part of enemies in The Shatters.
* MookCommander: Stone enemies within a certain radius of a Stone Monolith will gain the Armored status, increasing their DEF by 50%.
* MultipleLifeBars: If the HP bar of a King's Cavalry is depleted, the rider will dismount and continue to fight until he himself is killed.
* PlayingWithFire: Fire mages are another group of prominent monsters in the dungeon.
* PurpleIsPowerful: Accursed enemies are more powerful purple variants of regular enemies, have increased damage and slightly higher DEF, behave more aggressively, and can resurrect themselves.
* RobeAndWizardHat: All Fire Adepts and Ice Adepts wear a robe and pointed hat.
* ShowsDamage: A Tablet of the Monarchy visually breaks down every time it loses 25% of its HP.
* SuperMode: If they live long enough, Fire Mages can enter a phase where they have massively increased, erratic movement and can spew walls of status-inflicting fireballs.
* SuperpoweredEvilSide: Enemies fully corrupted by the Void will appear as Accursed variants, purple versions of their base enemy which use more deadly attacks and can respawn after enough time passes.
* TakingYouWithMe: A destroyed Stone Monolith explodes into a large shower of debris which rains down as bombs on nearby players.
* TrapMaster: Stone Mages can spawn Spikes that do not move and deal damage to people standing next to them.
* TheTurretMaster: Ice Mages can summon Ice Spheres; Fire Adepts and Ice Adepts can summon portals, stationary enemies that shoot streams of bullets.

!!Stone Idol
[[quoteright:176:https://static.tvtropes.org/pmwiki/pub/images/stone_idol.png]]

* ImplacableMan: The Stone Idol attacks any player it sees, is completely invulnerable, can barrel through terrain, and can easily kill even the hardiest player in an instant, meaning that (normally) running is the only option.
* RoamingEnemy: The Stone Idol patrols specific paths around the Derelict Village, periodically stopping to rest. Upon detecting a nearby player, it will flash and chase after them.
* SeeminglyHopelessBossFight: Normally, the players cannot harm the Stone Idol and are supposed to run from it. If the Void Phantasm was found and activated in the Derelict Village, it will eventually retreat to the Stone Idol, increasing its damage output while also removing its invulnerability. Defeating the Stone Idol is the first step to activate the Bridge Sentinel's Hard Mode.

!!The Bridge Sentinel (Valen the Unbreakable)
[[quoteright:176:https://static.tvtropes.org/pmwiki/pub/images/the_bridge_sentinel.png]]
->''Beyond this bridge is nothing but shadows. Abandon your arms and leave this place, for you will not find what you seek.''
The first boss of The Shatters, found guarding the bridge to the main area of the dungeon. The head of the kingdom's royal guard, who locked his king inside his castle once he realized he had been corrupted by the Void Entity.

* ActionBomb: Destroyed Paladin Obelisks summon hordes of Blobombs, powerful enemies that self-destruct into highly-damaging explosions.
* DesperationAttack: At low health, he'll use a particularly powerful set of attacks that outright darkens the screen for its entire duration as he unleashes a string of his strongest attacks.
* HeroAntagonist: The Bridge Sentinel only wants to stop you from unleashing the Void corruption within the depths of the Shatters, and he's one of the few beings in the game whose goals are unambiguously good. However, you still need to strike him down if you want to advance further into the Shatters.
-->'''The Bridge Sentinel:''' "I tried to protect you... I have failed. You release a great evil upon this Realm..."
* LightningBruiser: In stark contrast to his previous StationaryBoss iteration, the Sentinel is both incredibly agile, hard-hitting, and difficult to kill.
* NoSell: The first boss in the game that can destroy decoys. Not ignore them, ''destroy them.''
* PointOfNoReturn: The Bridge closes off after a bit once you enter his arena.
* ShieldedCoreBoss: Every 20% of HP lost, he'll go invulnerable until you take down one of his Paladin Obelisks.
* StormOfBlades: Summons volumes of golden swords which fly at players, along with rows of swords made of smaller bullets.
* TookALevelInBadass: To the extreme. The old iteration of the Sentinel was an easily cheesable StationaryBoss with a glaring safespot in the ''one attack'' it could use, and could only be dangerous because of the sheer damage each shot did as well as the infinitely respawning hordes of Blobombs. Now, not only does the Sentinel have much more health, he is instead a LightningBruiser with very swift movement and a whopping 9+ unique attacks compared to the original 1, all of which use creative BulletHell. The Paladin Obelisks were also changed from a convienent hazard to an integral part of the fight, as well as gaining the ability to actively fire at players.
* UpgradedBoss: Defeating the Void Phantasm before engaging the Bridge Sentinel will start a harder version of his fight where the Paladin Obelisks can continue throwing swords for the whole fight, even when summoning Blobombs. In exchange, he'll not only drop doubled loot, but reveal his true name as [[spoiler:Valen the Unbreakable]] and allow players to continue with the alternate route of the dungeon.

!!Twilight Archmage (Nox the Wild Shadow)
[[quoteright:136:https://static.tvtropes.org/pmwiki/pub/images/twilight_archmage_3.png]]
->''My lord, these souls are yours to reap! COME TO ME!''
The head alchemist and second boss of The Shatters, found in an ornate room at the end of the second section. Was the one responsible for the Forgotten King consulting the Void Entity's aid.

* ActionBomb: Throws both Fire Bombs and special Ice Spheres which explode after a delay.
* AIRoulette: A literal one, with the three Magi-Generators randomly picking between fire and ice, and him using the attack representing which element held a majority. Three Generators of one element will have him launch a LimitBreak instead. [[spoiler:Fighting him as Nox gives him a fourth generator, allowing him to use balanced attacks [[FromBadToWorse and an even more dangerous attack if he picks four of one element.]]]]
* AllEncompassingMantle: No part of his body is visible underneath that black cloak of his, although is face is briefly visible when he gets sucked into his orb upon defeat.
* TheArchmage: The Twilight Archmage is the second boss of one of the hardest dungeons in the game.
* BlackCloak: He's clad in a creepy-looking black cloak.
* BulletHell: ''Dear God.''
* TheCorruptor: Was the one who gave the Forgotten King the idea of communing with the Void Entity. It's unknown what his true intentions were, but it's safe to assume he knew very well what this action would cause. Later lore and the Shatters rework confirmed that he outright serves the Void Entity under the pretense of serving the King.
* EvilWearsBlack: He's evil and dressed entirely in a [[PurpleIsTheNewBlack very dark purple]].
* AnIcePerson: Uses ice attacks sometimes.
* PlayingWithFire: Can use fire magic for some of his attacks.
* PuzzleBoss: Downplayed. During the phases where you have to destroy his Generators, whatever Generator you destroy will be "locked in" and always contribute its respective element to his AIRoulette, making it possible to sway his likelihood of using certain elemental attacks with a bit of luck. [[spoiler:Locking in an equal amount of Fire and Ice Generators in his fight as Nox is also required to make him use his final attack and continue the alternate route of the dungeon.]]
* ShieldedCoreBoss: Once one of his generators is destroyed, he'll summon the phoenixes Inferno or Blizzard to shield him during his attacks. He won't be able to be harmed normally, but killing the active bird will stagger him and open him up to damage, although the bird will regenerate and defend him while he's down. When two generators are down, he'll summon both birds simultaneously. [[spoiler:In his fight as Nox, he'll eventually summon a third bird, Tempest]].
* StationaryBoss: Doesn't move.
* TookALevelInBadass: To the extreme. While he was at least functional compared to the other two bosses, the old Twilight Archmage suffered from an invincibility-padded fight that mostly relied on him summoning minions than actually attacking, and famously could have many of its phases skipped if you had enough damage. The new Archmage not only has substantially higher health, but also packs a much more complex battle with many, ''many'' attacks which embody BulletHell to an extreme, along with several PuzzleBoss mechanics thrown into the mix.
* UpgradedBoss: Defeating [[spoiler:Valen]] and destroying a special Source generator hidden in the Alchemy Lab will activate a fourth Magi-Generator, prompting a new fight against the Archmage using his true name, [[spoiler:Nox the Wild Shadow]]. This changes the structure of the fight and gives him many more attacks, significantly ramping up its already notable difficulty. However, defeating him yields doubled loot and a guaranteed Twilight Gemstone to one person, and [[spoiler:allows the King to be fought in his Hard Mode variant if Nox's Generators were balanced.]]
* YinYangBomb: The Twilight Archmage is capable of using both fire and ice attacks, and historically trained both the Fire and Ice Mages of the Shatters. [[spoiler:In his fight as Nox, getting an equal number of each generators allows him to use fire and ice simultaneously, with achieving an elemental equilibrium seeming to be his final goal.]]
* YouHaveOutlivedYourUsefulness: When he's defeated, his orb expands into a vortex that presumably leads to the Void, sucking him into it as he begs the Void Entity to just give him a little more time and power. [[spoiler:Defeating him as Nox will instead lead to him leaving of his own volition while mocking the players.]]


!!The Forgotten King (King Azamoth)
[[quoteright:152:https://static.tvtropes.org/pmwiki/pub/images/the_forgotten_king_1.png]]
->''Still you would challenge me? ...Very well. Let us make this quick.''
The king of the Shatters, once a wise king consumed by his lust for conquest and power. Eventually, he made a deal with the Void Entity, which led to his possession and his kingdom's ruination. Found at the end of The Shatters as the third and final boss.

* AnAxeToGrind: His main weapon is a double-sided battle axe, which he wields with one hand.

* BalefulPolymorph: The Giant Oryx Chicken is the result of a polymorph spell cast on Oryx by the Nexus' wizards and sorcerers that can only be maintained during April Fool's. While the Giant Oryx Chicken is still a boss on par with the normal Oryx, the ordeal is deeply traumatising for him due to his fear of chickens.

* FlunkyBoss: Taken UpToEleven: the Cube God can summon hordes of Cube Overseers, that can in turn maintain armies of minions of their own.

* FlunkyBoss: Has rather few attacks, and mostly defends itself by calling in Nest Colony Guardians. During the second half, it outright delegates the fighting to the 3 Beehemoths it summons. Taken UpToEleven with the fact that each Beehemoth can summon armies of Nest Colony Guardians.

* BonusBoss: Even more so than the Avatar: the Lost Sentry's indigo dot is visible on the minimap at all times, but it does not have a quest marker and isn't required to close the realm. This is because the Lost Sentry is arguably the most threatening enemy that can spawn in the realm itself, possibly alongside the aforementioned Avatar.

* AnIcePerson: Ice mages make up a large part of enemies in The Shatters.

!!The Bridge Sentinel / [[spoiler:Valen the Unbreakable]]

* NoSell: The first boss in the game that can destroy decoys. Not ignore them, ''[[UpToEleven destroy them.]]''

!!Twilight Archmage / [[spoiler:Nox the Wild Shadow]]

!!The Forgotten King / [[spoiler:King Azamoth]]

* BadassBoast: Simultaneously having extraordinary powers and extreme arrogance gives him many of these. His Accursed form dials his ego UpToEleven due to his SanitySlippage.

* TookALevelInBadass: Again, to the extreme. The old Forgotten King was a notoriously cheesable boss who could not only have his entire fight skipped with enough DPS, but had a desperation attack that could be avoided just by standing far enough away from him. Come the 2021 rework, and not only does he have a ''lot'' more health, his attacks were drastically expanded and elaborated on, all of which embody ridiculous amounts of BulletHell and do the damage to match, along with a SuperpoweredEvilSide that dials everything UpToEleven.

* WhamLine: [[spoiler:Halfway through his Hard Mode fight, he reveals his name as ''Azamoth'' (as in the same Azamoth Malus and the others worshipped). His ensuing dialogue and Realm Eye's remarks only have further implications of the lore significance of his name.]]

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* TheBusCameBack: The F.E.R.A.L. was initially designed as an enemy related to the Mad Lab, only to be scrapped and left to waste away for nearly a decade. Now, not only is it back in action, [[TookALevelInBadass it's ''far'' stronger than what it was intended to be.]]

* PlayingWithFire / PoisonousPerson: His portals primarily attack with fire and poison.

* BulletHell: His first form boasts some impressive, hard-to-dodge bullet patterns fitting of a FinalBoss. His second form retains the fancy patterns while packing more [[OneHitKill offensive ability]]. His third form, however, cranks both of these UpToEleven.

* AIRoulette: A literal one, with the three Magi-Generators randomly picking between fire and ice, and him using the attack representing which element held a majority. Three Generators of one element will have him launch a LimitBreak instead. [[spoiler:Fighting him as Nox gives him a fourth generator, allowing him to use balanced attacks [[FromBadToWorse and an even more dangerous LimitBreak if he picks four of one element.]]]]

** Cryo and Pyro Warlocks are the strongest members of the ice/fire mages respectively, having the highest stats and most varied attack patterns. Fittingly, they appear a lot less commonly than the others.
** The Shatters Royal Guard, which only appears in the last section of the dungeon, are this in-universe and in-game. They're among the sturdiest of the enemies one can find in the dungeon, as well as easily the most agile and hardest-hitting.

!!The Bridge Sentinel (Valen the Unbreakable)

!!Twilight Archmage (Nox the Wild Shadow)

* AIRoulette: A literal one, with the three Magi-Generators randomly picking between fire and ice, and him using the attack representing which element held a majority. Three Generators of one element will have him launch a LimitBreak instead.

* PuzzleBoss: Downplayed. During the phases where you have to destroy his Generators, whatever Generator you destroy will be "locked in" and always contribute its respective element to his AIRoulette, making it possible to sway his likelihood of using certain elemental attacks with a bit of luck.
* ShieldedCoreBoss: Once one of his generators is destroyed, he'll summon the phoenixes Inferno or Blizzard to shield him during his attacks. He won't be able to be harmed normally, but killing the active bird will stagger him and open him up to damage, although the bird will regenerate and defend him while he's down. When two generators are down, he'll summon both birds simultaneously.

* YinYangBomb: The Twilight Archmage is capable of using both fire and ice attacks, and historically trained both the Fire and Ice Mages of the Shatters.
* YouHaveOutlivedYourUsefulness: When he's defeated, his orb expands into a vortex that presumably leads to the Void, sucking him into it as he begs the Void Entity to just give him a little more time and power.

!!Vagrant Sellsword Ond'ande
[[quoteright:136:https://static.tvtropes.org/pmwiki/pub/images/vagrant_sellsword_ondande.png]]

* MiniBoss: If the players have previously encountered both Captain Nycolas and Vagrant Sellsword Ond'ande in the same run, the entire Grand Hall gauntlet will be replaced with a single miniboss encounter against Ond'ande.

!!The Forgotten King (King Azamoth)
[[quoteright:152:https://static.tvtropes.org/pmwiki/pub/images/the_forgotten_king_1.png]]
->''Still you would challenge me? ...Very well. Let us make this quick.''
The king of the Shatters, once a wise king consumed by his lust for conquest and power. Eventually, he made a deal with the Void Entity, which led to his possession and his kingdom's ruination. Found at the end of The Shatters as the third and final boss.
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--> ''You test the patience of a GOD!''
* AntiRegeneration: On Hard Mode, during phase 3, when King Azamoth temporarily disappears and the Shattered Queen becomes the main target, the screen will be tinted red and all players will be inflicted with Sick until she is defeated.

* GodEmperor: He spends the entire fight boasting about his royalty, which already says something about his ego, but when he uses his strongest attack, he outright claims himself to be divinity.

* HoldTheLine: One of the attacks he's guaranteed to use in his second form is a screen-spanning barrage of shots from all directions, where players have to survive for some time ''while all healing is disabled.''

* RecurringBoss: On Hard Mode, the Forgotten King's wife (the Crystal Prisoner) reappears as a miniboss, the Shattered Queen, who spawns after the Avatar of the Accursed King is destroyed and must be defeated in order to proceed to the final phase of the fight against her husband.

* Hobbits: An enemy type in the lowlands.