History ThatOneBoss / Castlevania

** Galamoth is a tedious damage sponge with huge HP (9,999, as much as Dracula has). He has a large sprite that is hard to avoid, and thunder magic that is also hard to avoid. Said thunder magic hits harder than most of the other bosses' attacks in the game (there is a hidden item that nullifies most of his attacks and turns him into a cakewalk, but [[GuideDangIt its location is practically undiscoverable without a strategy guide]]).

** In ''[[VideoGame/CastlevaniaChroniclesOfSorrow Aria of Sorrow]]'', he can summon vertical energy beams that chase you and cannot be avoided if you're close to a corner. Once you knock him out of this phase, he'll pull out a Double Scythe and throw/dash around with it, and all three attacks he performs hit hard and are fast. Insultingly, the sickles that he passively summons in his first phase have a mysterious habit of "randomly" spawning directly in your hurtbox if you're stationary for more than maybe a second or two, such as when you're trying to punish him while he's hovering. If you're moving, [[MortonsFork they spawn directly in your path instead]] and force you to work around them. In either of these situations, the hitstun, knockback or time spent evading the sickles can lead to being put directly in the path of harm of one of Death's more powerful, legitimately dangerous attacks! Add this to some serious [[HitboxDissonance hitbox dissonance]] where even the air around the corners of his cloak can hurt you for full contact damage, and Death's status as That One Boss of Aria of Sorrow is firmly cemented.
** In ''[[VideoGame/CastlevaniaChroniclesOfSorrow Dawn of Sorrow]]'', it's not too bad until [[TurnsRed phase two.]] Now he can teleport right in front of you and spam sickles. His best attack is spamming GIANT SKULLS FROM OFFSCREEN that deal huge damage. If you're hit by one, you are likely to recoil into another one.

* ''[[VideoGame/CastlevaniaChroniclesOfSorrow Dawn of Sorrow]]'':

** Adramelech, the game's WakeUpCallBoss. The three bosses before-hand were all pretty easy, so you might feel confident about your chances as you head for the boss chamber. Then, the room before you face Adramelech, you see Hugh got his ass beat by this thing and thrown into the room with you. When you go in to face Adramelech, you're greeted to a giant, chained up goat-man that's constantly creating harmful bubbles, fireballs, and giant waves of skulls.

** In ''VideoGame/CastlevaniaPortraitOfRuin'', he's a late-game boss which packs several infinite-range projectile attacks (meaning that he can hit you from off-screen), but manageable if you pay attention to him. However, '''''two''''' of him appear in the ''first room'' of the fifth area of [[BonusDungeon Nest of Evil]], and they do ''not'' move in sync; You may be busy trying to whale on one of them when the other decides to roast you ''from off-screen''.

** Abaddon, while potentially very easy with the right souls, is an absolute ''bitch'' without them. The locust swarms that he continually summons take up most of the room (which is tiny), are often very difficult to avoid, and do hilarious amounts of damage if they so much as brush up against you, and given how small the room is, you're likely to run into him just trying to avoid the damn things.