View source for TMTRAINER effect

The '''TMTRAINER effect''' is the common name for a series of [[glitch]]y effects associated with the move {{m|--}} and most {{m|Super Glitch}} moves occupying hexadecimal identifiers between A6 to C3 (or those with [[index number]]s between 166 and 195.)

==Effects in battle==
There are many variations of TMTRAINER effect that can occur, but the most common will result in the enemy Pokémon acquiring a large amount of {{stat|HP}} and becoming {{status|freeze|frozen}}, but it will simultaneously become {{status|burn}}ed. On the same turn the opponent's name would be changed so that it contains the string 'TMTRAINER' as well as some glitch dialogue. Since the game will often give the opponent a larger amount of {{stat|HP}} than its maximum, the opponent Pokémon may faint due to the large amount of damage from its burn.

The common TMTRAINER effect usually follows this pattern:

# The opponent will acquire the burn status.
# The music will fade, and when it reaches silence a sound effect will usually play.  <!--however it is notable that sometimes certain sound effects will play.--><!--This is the result of full fade-->
# Presuming that all in-battle processes were previously running as they should have been; when a move or item is used, the following text will be displayed: "Enemy [glitch dialogue, which often takes up a large amount of space] TMTRAINER (Species) is frozen solid!"
::* The glitch text is actually the now-corrupted enemy Pokémon's name.  
# Then similarly, the text will be displayed: "Enemy [glitch dialogue occupying a large amount of space] TMTRAINER (Species) is hurt by the burn!"
# The Enemy Pokémon's health bar will wrap across the screen several times and slowly deplete until eventually when after several minutes the Enemy Pokémon may faint.

If the player was battling a {{pkmn|Trainer}}, the opponent will send out the Pokémon that was in battle before the glitch activated. In {{game|Red and Blue|s}}, the game will [[Game freeze|freeze]] upon finishing the battle, unless the fight occured in a cave. In {{game|Yellow}}, the TMTRAINER effect does not crash the game; however, after returning back to the overworld, the sprite graphics will become scrambled.

Trying to capture the Pokémon after starting the glitch will result in catching a glitched pokemon with high health. This is often manipulated to catch strong pokemon and beat the game.

==Explanation==
{{main|Super Glitch (move)#Cause|Super Glitch (move) → Cause}}
Super Glitch and other moves with unstable names corrupt memory based on the screen buffer's contents. After opening any full-screen menu in battle, the screen buffer is loaded with battle screen contents, in order to bring them back later, after closing the menu. Since battle screens always look the same (excluding certain changing parts like HP bars), the TMTRAINER effect is very consistent, and always works in the same way. After selecting the move, the game tries to read the move name, and as a result, overwrites a large amount of battle-related variables with saved screen contents.

==Different variations==
The standard version of this effect happens when Super Glitch (or other move with improperly terminated name) is selected or used after viewing the Item or Pokémon menu in battle. If any of the full screen menus (like Pokémon menu or [[Trainer card]]) are opened in the overworld instead, the TMTRAINER effect may take different forms, depending on the player's location. Possible effects include Pokémon names becoming a section of the start menu, status conditions, extreme health and even permanent stat changes.

These variations can be exploited to catch rare or unobtainable species of Pokémon, to catch Pokémon above level 100, or to gain Pokémon with impossibly high amounts of HP.

==Trivia==
* 31 glitch moves have been documented as those which can cause the TMTRAINER effect, as well as {{m|--}}.
* Certain glitch items also have unstable names, and may cause the TMTRAINER effect after using them in battle.

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{{Glitches}}<br>
{{Project Glitchdex notice|no}}

[[Category:Glitch effects]]

[[fr:Effet TMTRAINER]]