History Main / GlitchEntity

** The original ''VideoGame/MortalKombat1'':

** ''VideoGame/PokemonRubyAndSapphire'' introduced the [[https://bulbapedia.bulbagarden.net/wiki/Bad_Egg Bad Egg]], which appears in every game since then. They're not really dangerous but they're extremely difficult to get rid of once you somehow obtain one because they can't be released. Unlike the Glitch Eggs from ''VideoGame/PokemonGoldAndSilver'', they rarely hatch; if they ''do'' hatch, however, whatever is hatched may eventually turn into a Bad Egg itself. In earlier versions of ''VideoGame/PokemonSwordAndShield'', they frequently appeared in Max Raids because people were hosting hacked raids.

** ''VideoGame/SonicTheHedgehog2'' has a glitch where using object placement mode to create a metric buttload of waterfalls in Emerald Hill Zone can cause Sonic's palette to be overwritten, turning him green with a black forehead. This miscolored Sonic, nicknamed [[http://sonic.wikia.com/wiki/Ashura "Ashura,"]] is a surprisingly popular "character", making frequent appearances in fan works. The glitch also inspired the appearance of Scourge from ''ComicBook/SonicTheHedgehogArchieComics'', who is an AlternateUniverse counterpart of Sonic and has green fur.

** Buried within ''VideoGame/KnucklesChaotix'''s hidden level select menu is the option to play as a white recolor of Knuckles, whose name is a row of ten asterisks. Since his name is [[TheUnpronounceable completely unpronounceable]], fans nicknamed him "[[http://sonic.wikia.com/wiki/Wechnia Wechnia]]" (derived from "White Echidna"). He's actually leftover data from when Tails was cut from the game early in development; he no longer uses his own art, name, or palette, leaving the game to display Knuckles with an unpronounceable name and Mighty's palette. Performing certain actions as Wechnia will crash the game -- even merely touching the ground is sometimes enough to cause a crash.

*** Has [[https://www.youtube.com/watch?v=tqi5H0Myo8c Blue Knuckles,]] who plays like a mixture of Sonic (his palettes and level routes), Knuckles (abilities), and Tails (uses his name at the end of act tally). The only ways to play as him are through hacking, UsefulNotes/GameGenie, or [[https://www.youtube.com/watch?v=m1atT6qrRLY a massive glitch in Lava Reef.]]

* ''VideoGame/SuperPitfall'' often has random sprites appearing at the edge of the screen, including miscolored copies of Pitfall Harry that WebVideo/TheAngryVideoGameNerd refers to as "The ghost of Pitfall Larry" and "Pitfall Gary".

*** ''VideoGame/PokemonXAndY'' has these as well. These glitch Pokémon don't have official names, [[https://bulbapedia.bulbagarden.net/wiki/Generation_VI_724%2B_glitch_Pok%C3%A9mon but most of them reuse Bulbasaur's model]] (with some exceptions). These reappear in later games, although they take the form of Marowak in ''VideoGame/PokemonLetsGoPikachuAndLetsGoEevee'' and Pikachu in ''VideoGame/PokemonSwordAndShield''.

* ''VideoGame/YandereSimulator'': Fun Girl is a monochrome-colored being who is only found directly by altering certain files, who was RetGone from existance. Her full-body art even features patches of glitchy textures throughout.

** Parodied in ''VideoGame/EpicBattleFantasy4'' with "The Glitch" BonusBoss. It is portrayed as a mix of static and pieces of game sprites, is immune to everything except non-elemental attacks, and has an "overflow" attack which deals zero damage, but causes instant death all the time.

* In ''VisualNovel/DokiDokiLiteratureClub'', removing the file of a character from the game directory will cause that character to hover between existing and not existing, only appearing in-game in bizarrely glitched ways. This happens as part of the story thanks to the BigBad, [[spoiler:Monika]], doing this to the file of [[spoiler:Sayori]] and eventually the other girls as well.

** [[VideoGame/PokemonGoldAndSilver Gen 2]] has a [[https://bulbapedia.bulbagarden.net/wiki/Glitch_Egg glitch egg]]. In ''Gold and Silver'', attempting to use it in battle will crash and restart the game. In ''Crystal'', you can battle with it, but as it has no moves, it will use Struggle until it faints. Every 30,720 steps, it will hatch into ''another'' egg.

** In Generation III, there are [[https://bulbapedia.bulbagarden.net/wiki/%3F_(glitch_Pok%C3%A9mon) 25 different glitch Pokémon]] filling the hexadecimal slots between those of Celebi and Treecko. They are almost completely harmless [[NoFairCheating unless the player tries to hack moves onto it]].

** If you get more than 10 lives in ''VideoGame/SuperMarioBros1'' it appears that the game "rewards" you on the start level screen with a crown in the place of the tens digit (crown-3 for 13 lives, etc). This is actually just random graphical glitch based on the programmers’ rather lazy assumption that no one would ever get more than nine lives. Once you get more than 20 lives numbers disappear altogether and the digits are replaced with random chunks of nonsense. The chunks always appear in the same order, however, meaning some people have managed to decipher the "code." In later games, such as ''VideoGame/SuperMario3DWorld'', this glitch was [[AscendedGlitch put back in]] as a legitimate feature.

*** The most infamous glitch of all is [[https://bulbapedia.bulbagarden.net/wiki/MissingNo._ "MISSINGNO."]](short for Missing Number). The main glitch which allows it to be encountered is caused by the game trying to interpret your PlayerCharacter's name as random encounter data, causing you to run into odd things; Missingno. itself is part irrelevant data being read as if it were stats and part leftover data from removed Pokémon, with the latter giving it the distinction of having many near-identical entries scattered throughout the game's internal species list. Although it has a reputation for being dangerous, Missingno. is relatively harmless[[note]]The most dangerous thing it can do is corrupt Hall of Fame data[[/note]], and [[GoodBadBugs also has the benefit of increasing the quantity of the 6th item in your bag by 128]][[note]]In short, every Pokémon has two bits in memory for the Pokédex to store whether you've seen and/or caught it. The seen bit for [=MissingNo=]. happens to be the most significant bit of the quantity of the 6th item, so if you have less than 128 of it, the game marks that you've now seen [=MissingNo=]., giving you 128 of the item.[[/note]], leading players to seek it out in order to duplicate useful items. Missingno. is still present in the 3DS Virtual Console re-releases of the original games, and if the player attempts to transfer it to ''VideoGame/PokemonSunAndMoon'', it will not be let through but will shift all your Pokémon's names over by one.

* ''VideoGame/{{Stellaris}}'' has the [[WesternAnimation/{{Futurama}} Despicable Neutral]] which is an AI personality for any Empire that is contacted prior to the second day of the game's internal clock. This is impossible in normal game play and was built to handle a situation just in case it happened. They favor all things equally.

* The Wiki/SCPFoundation: [[http://www.scp-wiki.net/scp-951 SCP-951]], an anomalous [[DarkIsNotEvil (but apparently friendly)]] video game glitch named "LUCAS" [[spoiler:AKA LOGICAL UNIFIED CENTRAL ANOMALY SYSTEM. It was deliberately engineered but flawed as it would "die" when the game ended and couldn't remember anything when the game restarted]]. Missingno gets a shout-out in a chatlog about the mysterious glitch:

* ''[[VideoGame/PokemonDiamondAndPearl Pokémon Platinum]]'' introduces Porygon-Z, an evolution of [=Porygon2=] that was supposed to improve Porygon's initial design and programming even further, allowing it to operate in alternate dimensions. However, the data on the Dubious Disc[[note]] The item that [=Porygon2=] needs to hold during a trade to evolve it into Porygon-Z.[[/note]] corrupted its original code, causing it to act erratically. Some even wonder if Porygon-Z can actually be considered an evolution of [=Porygon2=].

** ''VideoGame/TheLegendOfZeldaALinkToThePast'' has a mysterious invisible enemy called the ghost of Misery Mire that were an UrbanLegendOfZelda that turned out to be true. Investigation of the game's code revealed that the ghosts are actually Kus that are glitched due to being placed on the wrong type of ground tile. Kus can only exist on deep water tiles, but a few have been placed on shallow water. They can't attack but can be killed, although doing so may cause other glitches depending on what weapon was used.

* ''Franchise/{{Pokemon}}'' contains many of these. They are often depicted as being [[EldritchAbomination eldritch horrors]] in fanworks, because even the most harmless ones can have odd effects on the game, and they often appear as garbled masses of pixels. Beyond that, they vary wildly:

** In the UsefulNotes/{{Amiga}} port of ''VideoGame/MortalKombat2'', if you do the friendship on the ''morphed'' Shang Tsung, you end up controlling the long-lost brother of Glitch Reptile.

* ''Videogame/DeepRockGalactic'' has an ore/item of this sort. It looks like some manner of default texture cube, you can gather it but not interact with it once mined beyond looking at its name, and it's called ERR://23¤Y%/. Far too functional to be a true glitch, it remains a mystery what they actually ''are''. There's an achievement for gathering five of them, the description of which is still completely unclear on what they are, only that they're hot to the touch and smell of tarmac. The dwarves can only make comments along the lines of "What the hell is that?" when pointing at it.

* ''[[VideoGame/PokemonDiamondAndPearl Pokémon Platinum]]'' introduces Porygon-Z, an evolution of [=Porygon2=] that was supposed to improve Porygon's initial design and programming even further, allowing it to operate in alternate dimensions. However, the data on the Dubious Disc[[note]] The item that [=Porygon2=] needs to hold during a trade to evolve it into Porygon-Z.[[/note]] corrupted its original code, causing it to act erratically. Some even wonder if Porygon-Z can actually be considered an evolution of [=Porygon2=].
* ''VideoGame/SlimeRancher'' has Glitch Slimes that only exist in The Slimulation, which disguise themselves as other slimes or pieces of the environment. They are harmless, unless disguised as an inherently dangerous other breed of slime, but are noted as "being driven by some unknown motive to spread throughout The Slimulation." You're tasked by Viktor to go in and gather as many as possible before The Digitarr arrive, and then deliver them as "bug reports" once you leave so he can find a way to remove them. [[spoiler:In the end he figures out how to remove them, but [[AscendedGlitch leaves them in]] as he comes to consider them a "natural" development of his simulated environment and wants to study them more.]]

*** The most infamous glitch of all is [[https://bulbapedia.bulbagarden.net/wiki/MissingNo._ "MISSINGNO."]](short for Missing Number). The main glitch which allows it to be encountered is caused by the game trying to interpret your PlayerCharacter's name as random encounter data, causing you to run into odd things; Missingno. itself is part irrelevant data being read as if it were stats and part leftover data from removed Pokémon, with the latter giving it the distinction of having many near-identical entries scattered throughout the game's internal species list. Although it has a reputation for being dangerous, Missingno. is relatively harmless, and [[GoodBadBugs also has the benefit of increasing the quantity of the 6th item in your bag by 128]][[note]]In short, every Pokémon has two bits in memory for the Pokédex to store whether you've seen and/or caught it. The seen bit for [=MissingNo=]. happens to be the most significant bit of the quantity of the 6th item, so if you have less than 128 of it, the game marks that you've now seen [=MissingNo=]., giving you 128 of the item.[[/note]], leading players to seek it out in order to duplicate useful items. Missingno. is still present in the 3DS Virtual Console re-releases of the original games, and if the player attempts to transfer it to ''VideoGame/PokemonSunAndMoon'', it will not be let through but will shift all your Pokémon's names over by one.

*** Among the glitch trainers is Professor Oak, who is never fought in normal gameplay, but was originally intended to be. He has a proper party programmed into the game, but it isn't used anywhere, and he's more likely to use an incorrect team instead if fought using glitches.

*** In [[VideoGame/PokemonRubyAndSapphire Gen 3]] the placeholder is "[[https://bulbapedia.bulbagarden.net/wiki/Ten_question_marks ?????????]]", nicknamed "Decamark" due to its name consisting of ten question marks.

[[caption-width-right:240: ''Go, [[https://bulbapedia.bulbagarden.net/wiki/Ten_question_marks ??????????!]]''[[note]]Also known as '[[ExactlyWhatItSaysOnTheTin Ten question marks]] and ''Decamarks''.[[/note]]]]

[[caption-width-right:240: ''Go ??????????!'']]

* ''WebComic/TowerOfGod'': The virtual reality of the Hidden Floor is magical place, but it parodies a computer game. One of its inhabitants is the sworn enemy[[note]]a virtual being created for everyone who enters from the outside that will try to kill them if they break the rules[[/note]] of Urek Mazino, who apparently shouldn't exist there, especially since Mazino himself left ages ago. There are error messages floating in the air around him.

* In ''VideoGame/BoxxyQuestTheGatheringStorm'', there's the hidden boss “not_intended”. She lives in a MinusWorld-inspired area, speaks in glitchy text boxes and pop-up error messages, and her fight involves copious amounts of InterfaceScrew.

* In ''VideoGame/DevilSurvivor2RecordBreaker'', [[spoiler:Miyako was brought into being as a replacement for a character who pretended to be RetGone, but wasn't, and was merged with the EldritchAbomination Cor Caroli during universe generation. Her simultaneous existence with Yamato breaks the laws of the universe, making it possible to destroy Canopus, the divine guiding order of the entire universe.]]

** In the UsefulNotes/{{Amiga}} port of the second game, do the friendship on the ''morphed'' Shang Tsung, and you're now just controlling the lost brother of Glitch Reptile.