One of the main focuses of the game is the completion of the four stadium cups, each of which is a series of three-on-three Pokémon battles against an ordered lineup of opponents. Using the Transfer Pak accessory that was bundled with the game, players are able to view, organize, store, trade, and battle their own Pokémon uploaded from Pokémon Red, Pokémon Blue, and Pokémon Yellow. The game was originally intended for the Nintendo 64's DD add-on, but ended up turning into a standard console game after the add-on failed. The gameplay revolves around a 3D turn-based battling system using the 151 Pokémon from the Game Boy games Pokémon Red, Pokémon Blue, and Pokémon Yellow.

First released in Japan on April 30, 1999, it was later released as the first Stadium title in Western regions the following year, and is a sequel to the Japanese-only 1998 Nintendo 64 release Pocket Monsters Stadium. Pokémon Stadium is a strategy video game developed and published by Nintendo for the Nintendo 64 video game console.

Pocket monsters stadium