Swapping Transform moves glitch

The Swapping Transform moves glitch is a glitch in Pokémon Red and Blue. It was fixed in Pokémon Yellow.

If the player switches the positions of two of a Pokémon's moves after transforming (via the Select button), then the positions of its real moves will be swapped after the battle.

Obtaining the '-' as the first move

See - (move) for more information.

If the user's Pokémon has less than four moves, then '-' (also known as the 'CoolTrainer move') is available.

The easiest way to do this is to obtain a Ditto from e.g. Route 15 (east of Fuchsia City), then encounter a wild Pokémon with more than one move. Swap the 2nd, 3rd or 4th move with the first, then at the conclusion of the battle the first move will be replaced with "-".

After obtaining '-' as the first move it may have 0/13 PP at first, and healing at a Pokémon Center won't restore its PP. However, if the player uses a certain PP restoring item (Ether or Max Ether only), it's possible to use the move.

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  Opening up the fight menu.

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  Transforming into an Oddish.

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  Using select on the second move.

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  Swapping the second move with the first move.

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  Getting '-' as the first move (Ditto had no second move in its original moves).

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  Viewing the CoolTrainer♀ move on the fight menu with 0/13 PP.

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  Viewing the CoolTrainer♀ move on the fight menu after applying a PP restoring item.

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  Using the move. Its name is basically random.