-- (move)

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Cooltrainer (move) redirects here. For the Trainer class, see Cool Trainer. For the glitch type, see CoolTrainer♀ (type).
For other uses of - see -

-- is a glitch move of the CoolTrainer♀-type, a glitch type that is displayed for blank data. It is known by relatively few glitch Pokémon, and, unusually for a glitch move, can be learned by regular Pokémon. Initially, it has 0/13 PP, and can't gain any more by healing at a Pokémon Center. Rather, one must supply the Pokémon with a PP Up and an Ether/Elixir in order to be able to use the move.

Real Form

The Cooltrainer move, as can be seen from battle, is actually meant to represent a blank space in a Pokémon's movelist, and so isn't meant to be selected for use in battle. Its index number is 0, putting it roughly in-league with 'M (00), which takes this spot in Pokémon data.

This move is accessed when a player forces the game into thinking that the Pokémon has a blank move as its first move. To do this, a player must have a Ditto or another Pokémon with only Transform. This move must be used to become any opponent Pokémon. At this point, the player now has access to the opponent's movelist, via Ditto. By switching around the first and last moves in this movelist using the Select button, the glitch is activated, and all that must be done now is to end the battle, either by defeating the opponent or running away.

On the Pokémon status screen, the first move will be displayed as this move. After a PP Up or a PP-restoring item is used, the move is usable in-battle, which can cause a vastly random array of effects, as well as odd text such as "Ditto used Machop!" as the game draws data from elsewhere in its confusion.

Its usual effect is a damaging move with Fissure's animation, which freezes the game if it does not defeat the target.

If the Pokémon with this move reaches a level at which it can learn a new move, and has four moves already, the game will automatically delete this move and replace it with the new one, as it thinks that the Pokémon only has three moves.

The ability to cause this glitch was removed in later games; however, "--" is still used even in Generation V to denote no move.

Reported glitch phrases

It often occurs that the name of a Pokémon in the player's current box will be used for this move, such as "DITTO used MACHOP!" or "DITTO used ELECTABUZZ!". If the current box is empty, it can produce the name of previously erased save files. It can also be named with random characters including glitch characters.


By leveling up

# Pokémon Type Level
000 PkMn (C5) PkMn (C5) Normal Normal -- ' ' ' ' '
000 PkMn PkMn T PkMn PkMn T Normal Normal -- ' ' ' ' '
000 4 h 4 h Normal Normal -- ' ' ' ' '
000 ▶ A ▶ A Normal Normal -- ' ' ' ' '
Bold indicates a Pokémon gains STAB from this move.
Italics indicates a Pokémon whose evolution or alternate form receives STAB from this move.

Through the Transform glitch

All Pokémon capable of learning TMs can learn this move through Mimicking Transform.


The move is known to activate the TMTRAINER effect.

Cloning glitchesGlitch PokémonGlitch Trainers
Error messagesArbitrary code execution
Generation I: --0 ERRORCable Club escape glitchExperience underflow glitchFight Safari Zone Pokémon trick* • Glitch City
Item duplication glitchItem underflowMew glitchOld man glitchPewter Gym skip glitch
Pokémon merge glitchRhydon glitchSelect glitches (dokokashira door glitch, second type glitch)
Super GlitchTime Capsule exploitZZAZZ glitch
Generation II: Celebi Egg glitchCoin Case glitchesExperience underflow glitchGlitch dimension
Glitch EggSketch glitchTeru-samaTime Capsule exploitTrainer House glitches
Generation III: Berry glitch* • Dive glitchPomeg glitchGlitzer Popping
Generation IV: Acid rainGTS glitches* • Mimic glitch
Pomeg glitchRage glitchSurf glitch* • Tweaking
Generation V: Sky Drop glitch* • Frozen 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)

*Indicates glitches which have been officially acknowledged

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