Set in a new town called White City, the Stadium is home to the Poké Cup, Prime Cup, Challenge Cup, and Little Cup, each having its own rules and regulations. With the exception of the Challenge Cup, the player first assembles a team of six Pokémon consisting of any combination of rental Pokémon or imported Pokémon from a Game Boy cartridge. In the Challenge Cup, the parties of the player and opponents are chosen completely randomly. In the same fashion as the first "Stadium", each combatant chooses only three of their six Pokémon to use in a battle before beginning.