Pokémon Colosseum is a role-playing game (RPG) for the Nintendo GameCube developed by Genius Sonority and published by Nintendo. Released in 2004, it deviates from the traditional Pokémon handheld games, featuring 3D graphics and a darker storyline set in the Orre region, a land plagued by corrupt organizations. Players assume the role of Wes, a former member of the villainous Team Snagem, as he seeks to purify Shadow Pokémon—creatures forced to perform sinister moves. It combines RPG elements with strategic turn-based battles, offering both single-player and multiplayer modes.