The player can use his or her Pokémon to battle other Pokémon.
Red and Akai share the same version-exclusive Pokémon in order to complete the Pokédex, players must trade with owners of Blue version. Compared to the earlier version, Red has updated graphics and audio, some changes to area layouts, and significantly overhauled code, all of which in fact originate from the Japanese release of Pocket Monsters Ao. Pokémon Red Version is the international version of Pocket Monsters Akai.