Mario Superstar Baseball is a sports video game for the Nintendo GameCube combining the vibrant world of the Mario franchise with America's favorite pastime, baseball. Developed by Namco and published by Nintendo, the game falls within the sports genre, more specifically arcade-style baseball. Players take to the diamond with Mario and friends, each character boasting unique abilities that can tilt the game in their favor. The game features various modes, including Challenge, Exhibition, and Mini-Games, and supports multiplayer for up to four players, making it a fun and competitive title for all ages.