History Main / GlitchEntity

* In ''VideoGame/HenryStickmin: Stealing The Diamond'', Henry can summon [=MissingNo=]. to battle secure guards in the museum, which leads to a GameBreakingBug as its appearance causes the interface to crash.

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

* ''VideoGame/{{Undertale}}'' has the hidden character of Dr. W.D. Gaster. You have to mess around with the "fun" values in the game's coding to learn anything about him. [[spoiler:He was the royal scientist before Alphys, and has created the CORE, but he was scattered across space-time after falling into one of his inventions, with it being often theorized [[RetGone all memory of him has been erased with him]]. It's implied that he's ''aware'' to some degree and forced to watch the world functioning exactly the same without him. Oh, and did we mention that a later patch ''removed'' the need to mess with the files, randomly allowing his followers, [[AmbiguouslyRelated and possibly even Gaster himself]], to appear in non-edited worlds?]]

* There was a custom physics model for ''VideoGame/{{Marathon}}'' that turned the player's weapons and the [=BOBs=] into stuff like this. Glitches (or cheating) could add a "pirated [[UsefulNotes/MacOS Copland beta]]" or "copy of Windows NT" to your inventory. Per WordOfGod, these were placeholder strings for a DummiedOut weapon and its ammo. In entity form, they were ammo for the (normally disposable) Enforcer gun.

There also exist InUniverse examples, characters who are living glitches, usually used to explore the concept and how they interact with the world they are in. They can range from benevolent characters to mischievous tricksters to malicious {{Digital Abomination}}s.

* ''VideoGame/IdolShowdown'' has [[spoiler:one of these as the FinalBoss of the Virtual Frontier mode. Though it takes on the form of a glitchy Tokino Sora with the word "ERROR" on her face most of the time, it can also take on the other idols' forms in order to use their attacks as well as every single collab attack in the game]].

*** 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.]] This glitch inspired the appearance of Kit the Fennec, a character in the IDW Sonic comics who was a blue fox who served as Surge's partner.

*** A glitch in debug mode can turn Knuckles green. This coincidentally causes him to resemble the fake character "Rankles the Otter" invented by the UK Sega Magazine, who was a green version of Knuckles with large spiky ankles, no spikes on his gloves, and fewer dreadlocks. As a joke, the magazine offered money to the first person to find Rankles in the game; a reader inevitably sent in a picture of the glitch, only to be told off because "the mystery character hasn't got sparkly ankles and therefore cannot be Rankles and is just Knuckles underwater".