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Glitch battle

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A Glitch battle is a type of battle which a glitch Pokémon initiates. It happens when an encounter starts with a glitch Pokémon whose sprite causes memory corruption. Glitch battles often feature a series of unpredictable effects. Every glitch battle eventually causes the game to freeze. There exist mild variants of glitch battles, which only corrupt a handful of addresses and do not cause the game to crash - like 'M's and Missingno.'s Hall of Fame data corruption.


Glitch battles most commonly follow a constant string of events:

  1. The screen tiles get scrambled, as a result of corrupting the screen data. This step may not happen every time.
  2. The game refreshes the corrupted values and makes the changes visible. This includes Pokémon receiving random status conditions, opponent name changing, or glitchy strings of text appearing on the screen.
  3. Music usually fades into a single sound, or is replaced with static or a low pitched droning noise. Sometimes the low HP beeping loop will start to play for no reason.
  4. The game will try operating on the corrupted values. It may include sending out nonexistent glitch Pokémon, or trying to continue the battle in a glitched state.
  5. Eventually, the game crashes in its confusion.

Some glitch Pokémon sprites corrupt enough memory to affect the game, but do not corrupt enough to make it unplayable. The most common example is Pokémon Red and Blue's version of Missingno., whose sprite slightly corrupts the save data by corrupting the Hall of Fame records, but does not destroy any important information.


  • 4(h4? is the most appropriate example, since its encounter sequence clearly showcases all features of a glitch battle.
  • 4 4 crashes the game upon encounter. However, before the game crashes, it is possible to see the glitched battle screen for a brief moment. When it is sent out in a trainer battle, it severely glitches up the game screen and freezes the game shortly afterwards. It shares these traits with two other glitch Pokémon, 8B 4 8 and ゥ' B.
  • Yellow form Missingno.'s front sprite often crashes or freezes the game. It also severely messes up the music and affects graphics after returning to overworld. Other than that, it's completely safe.
  • ♀ . slightly corrupts some memory addresses responsible for music and graphics, but keeps the game playable.
  • Certain glitch Pokémon, like PkMnaPkMnゥ ♂ fPkMnk, crash the game instantly and do not give enough time to see any glitch battle effects.



By Krauser912
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By Missingno3000
Videos are currently unavailable on Bulbapedia; instead, you can watch the video on YouTube here.

Cloning glitchesGlitch PokémonGlitch types
Generation I: --0 ERRORCable Club escape glitchError codesExperience underflow glitchGlitch CityGlitch dimension
Glitch movesGlitch TrainersItem duplication glitchJohto guard glitchMew glitchOld man glitchPewter Gym skip glitch
Pokémon merge glitchRhydon glitchSelect glitches (dokokashira door glitch, second type glitch)
Super GlitchZZAZZ glitch
Generation II: Celebi Egg glitchCoin Case glitchesError codesExperience underflow glitchGlitch Egg
Johto guard glitchSketch glitchTeru-samaTrainer House glitchGlitch dimension
Generation III: Berry glitchDive glitchPomeg glitch
Generation IV: Acid rainGlobal Terminal glitchesMimic glitch
Pomeg glitchRage glitchSurf glitchTweaking
Generation V: Sky Drop glitchFrozen Zoroark glitch
Generation VI: Lumiose City save glitch
Glitch effects: Game freezeGlitch battleGlitch song
Gens I/II only: Japanese characters in the international versions
Gen I only: Glitch screenTMTRAINER effectInverted sprites
Gen II only: Glitch dimension
Lists: Glitch movesGlitch types
Glitch Pokémon (Gen IGen IIGen IIIGen IVGen VGen VI)
Glitches (Gen IGen IIGen IIIGen IVGen VGen VISpin-off)

Project GlitchDex logo.png This article is part of Project GlitchDex, a Bulbapedia project that aims to write comprehensive articles on glitches in the Pokémon games.