The Pokemon, Ditto, was meant to be a possible helper when a Pokeball was thrown. He was supposed to transform into the player that threw the ball and would help fight. However, there were problems with its programming and it was removed. By using an action replay, Ditto can be put back into the game, but he is lacking his "transform" ability. Instead, all it does is say "Meta!" (it's Japanese name being Metamon) and disappears. Anyone who runs into it is dealt 7-8% damage.