On which Nintendo console was Pokémon Stadium first released?

Pokémon Stadium was first released on the Nintendo 64.

The game launched in Japan in 1998 and brought Pokémon battles into a fully 3D arena format. Players could select Pokémon teams, enter tournament-style cups, and battle opponents under different rules.

Pokémon Stadium also connected with the Game Boy Pokémon games through the Nintendo 64 Transfer Pak. This allowed players to use Pokémon from compatible Game Boy cartridges in Stadium, rather than relying only on rental Pokémon.

The title is sometimes confused with Pokémon Stadium 2, which was released later and expanded the roster with Pokémon from the Johto games. The original Pokémon Stadium belongs to the Nintendo 64 era and focuses primarily on the first-generation Pokémon.