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:''[[Cooltrainer (move)]] redirects here. For the Trainer class, see [[Cool Trainer]]. For the glitch type, see [[List of glitch types#Cooltrainer♀|Cooltrainer♀ (Type)]].''
:''[[Cooltrainer (move)]] redirects here. For the Trainer class, see {{tc|Ace Trainer|Cool Trainer}}. For the glitch type, see [[CoolTrainer♀ (type)]].''
:''For other uses of -, see [[-]].''
----
----
'''--''' is a glitch move of the {{type2|CoolTrainer♀}}, 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 {{p|Ditto|a 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.
'''-''' (random internal name) is a glitch move in {{game4|Red|Green|Blue|Yellow}} of the {{type|CoolTrainer♀}} in English versions. It is learned by a handful of [[glitch Pokémon]], and, unusually for a glitch move, can be learned by a regular Pokémon easily. Initially, it has 0/13 PP, and can't recover said PP 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.


==What it really is==
==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]], which takes this spot in Pokémon data.
The Cooltrainer move, as can be seen from battle, is actually meant to represent the empty spaces in the movelist of a Pokémon that has three or fewer moves, and so is clearly not meant to be used, selected or learned. 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 {{m|Transform}} use that move 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.
This move can only be accessed when a player forces the game into thinking that the Pokémon has a blank move as its first move. To be able to use the move, a player must either perform the Transform glitch, or have a Pokémon with a full moveset which learns the Cooltrainer move and replace its first move.
The Transform glitch can be performed with any 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. 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 {{p|Machop}}!" as the game draws data from elsewhere in its confusion.
When learned by a glitch Pokémon, the move will have a {{m|Super Glitch}} name, instead of its placeholder name "-"; and so, it may crash the game just by trying to learn it. The method of [[Super Glitch (move)#Issues and prevention|circumventing the problem]] is the same as it is for Super Glitch moves.


Its usual effect is a damaging move with {{m|Fissure}}'s animation, which freezes the game if it does not defeat the target.
== Effects ==
 
After a PP Up or a PP-restoring item is used, the move is usable in-battle, which can cause a vastly random and destructive array of effects. Its usual effect is a damaging move with Fissure's animation, which freezes the game if it does not defeat the target.
 
The move has no real name, so after selecting it in battle or learning it, it behaves exactly like {{m|Super Glitch}}, and takes an unpredictably chosen portion of RAM as its name. 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!". If the current box is empty, it can even produce names from previously erased save files. It also inherits all the effects of Super Glitch, including the [[TMTRAINER effect]], and these effects occur even if the move has no PP remaining.


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.
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 IV]] to denote no move.
The ability to learn this move through Transform glitch was removed in later games; however, in {{game|Yellow}} it is still possible to learn this move through learnsets of certain [[glitch Pokémon]]. The phrase "-" is still used even in [[Generation V]] to denote no move.
 
== In Pokémon Stadium ==
In {{OBP|Pokémon Stadium|English}}, this move will be read as the Pokémon having no moves, thus making the Pokémon use {{m|Struggle}}.
 
== Semi-Super Glitch effect ==
If "-" is highlighted as a move from the Fight menu from within a Pokémon battle, a corruption effect may or may not occur. The player can attempt to get the corruption effect again by scrolling through the moves list or opening and closing the Fight menu.
 
The mechanics of the corruption work almost in the same way as [[Super Glitch]]. Data from a move name buffer (at $CD6D) capped to be 20 bytes long is copied into another buffer until a 0x50 character from the original buffer is found.
 
The random internal name of "-" may not have a 0x50 in its first twenty characters; and, if so, data is copied from beyond the initial buffer and overflows the other buffer, causing the corruption of unrelated memory addresses. The difference between "-" corruption and Super Glitch corruption is that the initial data is only copied to one buffer ($CF4B) while other glitch moves can corrupt both $CF4B and $D0E1, which is why it can be considered as a 'semi-Super Glitch effect'. Regular Super Glitch corruption typically corrupts data for things such as the player's name and the player's Pokémon, while in the same circumstances "-" does not; but it can still corrupt data such as the enemy Pokémon in battle, meaning that is more practical to abuse.
 
Beyond the 20 byte move name buffer is a copy of screen data that is updated every time the player performs actions such as opening the Pokémon menu or items menu. This means that cached screen data can directly influence the effect of "-".
 
The "-" corruption effect can be caused outside of battle, too. When performing an action such as trying to apply a PP Up, the game will display "-"'s random internal name and if it is too long, the same mechanics above apply, but different effects can be observed (depending on where the player triggered the effect) due to the player not being within battle, such as the moves in the moves list becoming corrupted and not being able to continue playing the game after a white screen, or a forced walking effect when the menu is closed.
=== Freezes ===
If -'s corruption effect is activated when the last cached screen data does not have a 0x50 character in it, too much data will be copied to $CF4B and the game will most likely freeze.
=== Changing the foe into MissingNo. or Horsea ===
If during a battle, the Pokémon or items menu is opened before viewing the "-" move, then the player views the "-" move via Fight and corruption is successful, the music will fade out and the enemy Pokémon will be corrupted into a level 127 [[MissingNo.]] (hex:32) with 6946 current HP which can be captured and used to duplicate the player's sixth item by 128 upon capture.
 
If the same steps are performed when the [[inverted sprites]] effect is active, then the player will obtain a level 127 {{p|Horsea}} with 6932 current HP instead. This is due to the inverted sprites effect affecting the battle tiles (because cached screen data will directly influence the effects of -).
 
In Pokémon Red and Blue, the glitch must be performed in [[Diglett's Cave]] (and possibly other places) to avoid a freeze, and then the start menu must be opened to avoid another freeze from exiting the cave. In Pokémon Yellow, the glitch can be performed anywhere without a freeze. However, since the Transform glitch was fixed in Pokémon Yellow it is more difficult to get "-" as the first move.
 
=== Advanced uses of "-"===
{{incomplete|section|Elaborate on specifics regarding the coordinates of tiles on the screen for desired corruptions}}
In Pokémon Red and Blue, but not in Pokémon Yellow, since it is possible to bring over cached screen data into a battle that is updated when the player opens the items menu or the Pokémon menu, the player can manipulate the enemy Pokémon into multiple other unique Pokémon.
 
Using a [[Glitch City]] or a combination of a "tile-writing glitch item" and the glitch item "9F" (hex:5E) in Pokémon Red and Blue, or the glitch item "-gm" (hex:6A) in Pokémon Yellow, almost any Pokémon, glitch Pokémon or not can be obtained. The glitch items 9F and -gm update the game's cached screen data manually, meaning that the tiles written by a tile-writing glitch item can be saved into the screen cache and affect the enemy Pokémon if a tile is written in the right coordinates.


===Reported glitch phrases===
Some advanced uses of "-" will cause the freeze described in the section above. The freeze after finishing a battle is caused when "-" sets the CFC4 address to an odd value (CFC4 can also be corrupted this way in an unrelated glitch called "wild appeared" that has the same freeze). As the 8x8 pixel tile at game coordinates y=6, x=1 affects CFC4; opening the Pokémon or items menu in certain places will allow for enemy Pokémon corruptions that do not cause freezes outside of Diglett's Cave.
*DITTO used MACHOP!
{{youtubevid|Sst_5kAX2y4|TheZZAZZGlitch|glitch}}
*DITTO used !
*DITTO used STARMIE!
*DITTO used L!
*DITTO used KADABRA!
*DITTO used ZAPDOS!
*DITTO used AERODACTYL!
*DITTO used NEASH!
*DITTO used JACK!
*DITTO used MEWTWO!


==Learnset==
==Learnset==
===[[Generation I]]===
===By [[Level|leveling up]]===
====By [[Level|leveling up]]====
{{Moveheader/Level|Unknown|1}}
{{Learnlist|???}}
{{Moveentry/Level1|000|▶ A|2|Normal|Normal|--<br>248}}
{{Moveentry|000|PkMn|2|Normal|Normal|--}}
{{Moveentry/Level1|000|PokéWTrainer|2|Normal|Ground|11<br>40<br>55<br>80}}
{{Moveentry|000|A (uppercase)|2|Normal|Normal|--}}
{{Moveentry/Level1|000|PC4SH|2|Normal|Ground|28<br>62}}
{{Learnlist/footer}}
{{Moveentry/Level1|006|'M (FF)|2|Fire|Flying|28<br>62}}
{{Moveentry/Level1|033|Glitch (FA)|1|Poison|Poison|22}}
{{Moveentry/Level1|000|ゥ .4|1|Pokémaniac|Pokémaniac|97}}
{{Moveentry/Level1|000|Q◣|2|Water|Psychic|234}}
{{Moveentry/Level1|000|X ゥ- xゥ,|1|Normal|Normal|11<br>40<br>55<br>80}}
{{Moveentry/Level1|000|.PkMn|2|Normal|Normal|--}}
{{Moveentry/Level1|000|X C|1|Glitch|Glitch|--}}
{{Moveentry/Level1|000|$|1|Glitch|Glitch|--}}
{{Movefooter|Unknown|1}}


====Through the Transform glitch====
===Through the Transform glitch===
{{Learnlist|???}}
All Pokémon capable of learning TMs can learn this move through {{m|Mimic}}king Transform.
{{Moveentry|000|A (uppercase)|2|Normal|Normal|48}}
{{Moveentry|132|Ditto|1|Normal||--}}
{{Moveentry|151|Mew|1|Psychic||--}}
{{Learnlist/footer}}
==Super Glitch and the Swimmer==
When exploiting the transform glitch on the Swimmer with two Horseas in the water right under [[Fuchsia City]], some odd and Super Glitch-like effects were found to happen. The discovering user reported the following:
*Ditto Transformed into the Horsea and swapped the first and second moves.
*Ditto was called back and replaced with a Pidgeot, which precedded to faint the Horsea.
*When the Swimmer was about to send out his second Horsea, Pidgeot was switched for the Ditto.
*When Ditto's moves were checked, -- was occupying the first slot and the cursor couldn't be moved beyond it.
*If down on the D-Pad was pressed enough, "[Glitchy tile]Y99[Glitchy tile]99 to" appeared in the second and fourth move slots.
*When -- was used, the menu's processing speed slowed and Horsea's name changes to two glitchy tiles and it suddenly sustained a burn.
*The music slowly faded out then stopped altogether, and a sound like "Kssh" could be heard occasionally.
*The game stated that Horsea was frozen solid, then hurt by the burn, which slowly depleted it's now wrapped-around-the-screen HP bar, much like with Super Glitch.
*Even when Horsea was fainted by it's burn, the Swimmer sent out the Horsea again.
*Ditto was then switched out and Pidgeot was sent back out.
*Horsea's sprite then changed to that of Arcanine.
*"Arcanine" fainted due to it's burn, and strangely, the same Horsea was sent out again.
*At that point, processing speeds, text, and sprites were back to normal.
*Then Ditto was switched in.
*Everything messed up again, and the burn fainted the Horsea.
*Another Horsea was sent out, so Ditto was switched out for Pidgeot.
*Pidgeot defeated Horsea with Gust, and the battle finally ended.
*The game then froze.


{{Glitches}}<br>
{{DoubleProjectTag|GlitchDex|Moves and Abilities|glitch moves.}}


{{Project GlitchDex notice|no}}
[[Category:Glitches]]
[[Category:Moves]]
[[Category:Glitch moves]]
[[Category:Glitch moves]]

Revision as of 17:30, 9 June 2016

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

- (random internal name) is a glitch move in Pokémon Red, Green, Blue, and Yellow of the CoolTrainer♀-type in English versions. It is learned by a handful of glitch Pokémon, and, unusually for a glitch move, can be learned by a regular Pokémon easily. Initially, it has 0/13 PP, and can't recover said PP 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 the empty spaces in the movelist of a Pokémon that has three or fewer moves, and so is clearly not meant to be used, selected or learned. Its index number is 0, putting it roughly in-league with 'M (00), which takes this spot in Pokémon data.

This move can only be accessed when a player forces the game into thinking that the Pokémon has a blank move as its first move. To be able to use the move, a player must either perform the Transform glitch, or have a Pokémon with a full moveset which learns the Cooltrainer move and replace its first move. The Transform glitch can be performed with any 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. 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.

When learned by a glitch Pokémon, the move will have a Super Glitch name, instead of its placeholder name "-"; and so, it may crash the game just by trying to learn it. The method of circumventing the problem is the same as it is for Super Glitch moves.

Effects

After a PP Up or a PP-restoring item is used, the move is usable in-battle, which can cause a vastly random and destructive array of effects. Its usual effect is a damaging move with Fissure's animation, which freezes the game if it does not defeat the target.

The move has no real name, so after selecting it in battle or learning it, it behaves exactly like Super Glitch, and takes an unpredictably chosen portion of RAM as its name. 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!". If the current box is empty, it can even produce names from previously erased save files. It also inherits all the effects of Super Glitch, including the TMTRAINER effect, and these effects occur even if the move has no PP remaining.

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 learn this move through Transform glitch was removed in later games; however, in Pokémon Yellow it is still possible to learn this move through learnsets of certain glitch Pokémon. The phrase "-" is still used even in Generation V to denote no move.

In Pokémon Stadium

In Pokémon Stadium, this move will be read as the Pokémon having no moves, thus making the Pokémon use Struggle.

Semi-Super Glitch effect

If "-" is highlighted as a move from the Fight menu from within a Pokémon battle, a corruption effect may or may not occur. The player can attempt to get the corruption effect again by scrolling through the moves list or opening and closing the Fight menu.

The mechanics of the corruption work almost in the same way as Super Glitch. Data from a move name buffer (at $CD6D) capped to be 20 bytes long is copied into another buffer until a 0x50 character from the original buffer is found.

The random internal name of "-" may not have a 0x50 in its first twenty characters; and, if so, data is copied from beyond the initial buffer and overflows the other buffer, causing the corruption of unrelated memory addresses. The difference between "-" corruption and Super Glitch corruption is that the initial data is only copied to one buffer ($CF4B) while other glitch moves can corrupt both $CF4B and $D0E1, which is why it can be considered as a 'semi-Super Glitch effect'. Regular Super Glitch corruption typically corrupts data for things such as the player's name and the player's Pokémon, while in the same circumstances "-" does not; but it can still corrupt data such as the enemy Pokémon in battle, meaning that is more practical to abuse.

Beyond the 20 byte move name buffer is a copy of screen data that is updated every time the player performs actions such as opening the Pokémon menu or items menu. This means that cached screen data can directly influence the effect of "-".

The "-" corruption effect can be caused outside of battle, too. When performing an action such as trying to apply a PP Up, the game will display "-"'s random internal name and if it is too long, the same mechanics above apply, but different effects can be observed (depending on where the player triggered the effect) due to the player not being within battle, such as the moves in the moves list becoming corrupted and not being able to continue playing the game after a white screen, or a forced walking effect when the menu is closed.

Freezes

If -'s corruption effect is activated when the last cached screen data does not have a 0x50 character in it, too much data will be copied to $CF4B and the game will most likely freeze.

Changing the foe into MissingNo. or Horsea

If during a battle, the Pokémon or items menu is opened before viewing the "-" move, then the player views the "-" move via Fight and corruption is successful, the music will fade out and the enemy Pokémon will be corrupted into a level 127 MissingNo. (hex:32) with 6946 current HP which can be captured and used to duplicate the player's sixth item by 128 upon capture.

If the same steps are performed when the inverted sprites effect is active, then the player will obtain a level 127 Horsea with 6932 current HP instead. This is due to the inverted sprites effect affecting the battle tiles (because cached screen data will directly influence the effects of -).

In Pokémon Red and Blue, the glitch must be performed in Diglett's Cave (and possibly other places) to avoid a freeze, and then the start menu must be opened to avoid another freeze from exiting the cave. In Pokémon Yellow, the glitch can be performed anywhere without a freeze. However, since the Transform glitch was fixed in Pokémon Yellow it is more difficult to get "-" as the first move.

Advanced uses of "-"

050Diglett.png This section is incomplete.
Please feel free to edit this section to add missing information and complete it.
Reason: Elaborate on specifics regarding the coordinates of tiles on the screen for desired corruptions

In Pokémon Red and Blue, but not in Pokémon Yellow, since it is possible to bring over cached screen data into a battle that is updated when the player opens the items menu or the Pokémon menu, the player can manipulate the enemy Pokémon into multiple other unique Pokémon.

Using a Glitch City or a combination of a "tile-writing glitch item" and the glitch item "9F" (hex:5E) in Pokémon Red and Blue, or the glitch item "-gm" (hex:6A) in Pokémon Yellow, almost any Pokémon, glitch Pokémon or not can be obtained. The glitch items 9F and -gm update the game's cached screen data manually, meaning that the tiles written by a tile-writing glitch item can be saved into the screen cache and affect the enemy Pokémon if a tile is written in the right coordinates.

Some advanced uses of "-" will cause the freeze described in the section above. The freeze after finishing a battle is caused when "-" sets the CFC4 address to an odd value (CFC4 can also be corrupted this way in an unrelated glitch called "wild appeared" that has the same freeze). As the 8x8 pixel tile at game coordinates y=6, x=1 affects CFC4; opening the Pokémon or items menu in certain places will allow for enemy Pokémon corruptions that do not cause freezes outside of Diglett's Cave.

By TheZZAZZGlitch
This video is not available on Bulbapedia; instead, you can watch the video on YouTube here.


Learnset

By leveling up

# Pokémon Type Level
I II III IV V VI
000 ▶ A ▶ A Normal Normal --
248
' ' ' ' '
000 PokéWTrainer PokéWTrainer Normal Ground 11
40
55
80
' ' ' ' '
000 PC4SH PC4SH Normal Ground 28
62
' ' ' ' '
006 'M (FF) 'M (FF) Fire Flying 28
62
' ' ' ' '
033 Glitch (FA) Glitch (FA) Poison Poison 22 ' ' ' ' '
000 ゥ .4 ゥ .4 Pokémaniac Pokémaniac 97 ' ' ' ' '
000 Q◣ Q◣ Water Psychic 234 ' ' ' ' '
000 X ゥ- xゥ, X ゥ- xゥ, Normal Normal 11
40
55
80
' ' ' ' '
000 .PkMn .PkMn Normal Normal -- ' ' ' ' '
000 X C X C Glitch Glitch -- ' ' ' ' '
000 $ $ Glitch Glitch -- ' ' ' ' '
Bold indicates a Pokémon gains STAB from this move.
Italics indicates a Pokémon whose evolution or alternate form receives STAB from this move.
A dash (−) indicates a Pokémon cannot learn the move by the designated method.
An empty cell indicates a Pokémon that is unavailable in that game/generation.


Through the Transform glitch

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


Multiple
generations
Transform glitchesGlitch TrainersCloning glitchesError messagesArbitrary code execution
Generation I GlitchesBattle glitchesOverworld glitches
--0 ERRORBroken hidden itemsCable Club escape glitchDual-type damage misinformation
Experience underflow glitchFight Safari Zone Pokémon trickGlitch CityItem duplication glitchItem underflow
Mew glitchOld man glitchPewter Gym skip glitchPokémon merge glitchRhydon glitchRival twins glitch
Select glitches (dokokashira door glitch, second type glitch) • Super Glitch
Time Capsule exploitWalking through wallsZZAZZ glitch
Generation II GlitchesBattle glitches
Bug-Catching Contest glitchCelebi Egg glitchCoin Case glitchesExperience underflow glitch
Glitch dimensionGlitch EggTeru-samaTime Capsule exploitTrainer House glitchesGS Ball mail glitch
Generation III GlitchesBattle glitches
Berry glitchDive glitchPomeg glitchGlitzer Popping
Generation IV GlitchesBattle glitchesOverworld glitches
Acid rainGTS glitchesPomeg glitchRage glitch
Surf glitchTweakingPal Park Retire glitch
Generation V GlitchesBattle glitchesOverworld glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Frozen Zoroark glitchSky Drop glitch
Generation VI GlitchesBattle glitchesOverworld glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Lumiose City save glitchSymbiosis Eject Button glitchToxic sure-hit glitch
Generation VII GlitchesBattle glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Toxic sure-hit glitchRollout storage glitch
Generation VIII Glitches
Charge Beam additional effect chance glitchCharge move replacement glitchChoice item lock glitch
Toxic sure-hit glitchRollout storage glitchParty item offset glitch
Generation IX Glitches
Glitch effects Game freezeGlitch battleGlitch song
Gen I only: Glitch screenTMTRAINER effectInverted sprites
Gen II only: Glitch dimension
Lists Glitches (GOMystery DungeonTCG GBSpin-off)
Glitch Pokémon (Gen IGen IIGen IIIGen IVGen VGen VIGen VIIGen VIII)
Glitch moves (Gen I) • Glitch types (Gen IGen II)


Project GlitchDex logo.png This article is part of both Project GlitchDex and Project Moves and Abilities, Bulbapedia projects that, together, aim to write comprehensive articles on glitch moves. Project Moves and Abilities logo.png