Like its predecessor, "Pokémon Stadium 2" is compatible with the Transfer Pak accessory, allowing players to use Pokémon trained in the three original Game Boy "Pokémon" games ("Pokémon Red", "Blue", and "Yellow") and the three Game Boy Color games ("Pokémon Gold", "Silver", and "Crystal"). The majority of the game takes place inside the fictional White City, where various facilities for battling, organizing, researching, and playing with Pokémon are located. The Japanese edition also features the capability to use the Pokémon Mobile System from "Pokémon Crystal".