Sonic & Sega All-Stars Racing is a classically styled kart racing game, with zippy vehicles, fantasy-themed courses, and over-the-top power-ups. Players choose to race as a favorite Sega game character, from a roster of 20 that includes Sonic, Tails, and Dr. Eggman, as well as Ai Ai and his monkey-balled companions, and the maracas-shaking Amigo from the Dreamcast's hit rhythm game. In classic kart-racing form, each character drives a vehicle with different attributes -- such as acceleration, handling, and top-speed -- allowing players to choose a ride that complements their driving style or to pick a character best suited for the challenges of a particular course. The game features two dozen different tracks, set in medieval castles, lush rain forests, and busy city streets, all stocked with hazards to avoid, bonuses to collect, and shortcuts to discover. Up to four players can compete in a split-screen mode.