An action replay is a type of cartridge that allows the console player to modify the game they are playing. Here in Pokémon Black 2 and White 2, the action replay allows for infinite items and money, as well as Pokémon that cannot be found in this game. This last technique allows for the completion of the original Pokédex.
Here in Pokémon Black 2 and White 2, the action replay allows for infinite items and money, as well as Pokémon that cannot be found in this game. This last technique allows for the completion of the original Pokédex.