Pokémon Stadium is a battle simulation game developed by HAL Laboratory and published by Nintendo. It launched for the Nintendo 64 in Japan on April 30, 1999. Players can transfer Pokémon from first-generation Pokémon titles (Red, Green, Blue, and Pikachu) to the N64 for 3D battles, delivering a more vivid combat experience. It features multiple battle modes like free battle and tournament mode, letting players challenge real-world tournament competitors to hone their battle skills. It also includes rich features such as a 3D Pokédex, the ability to play first-generation Pokémon games on N64, and various mini-games, boosting the game's fun and replay value.