Sonic & All-Stars Racing Transformed is a kart racing video game available in single-player and multiplayer mode. It was developed by Sumo Digital and published by Sega. Sonic & All-Stars Racing Transformed is a racing game where players race each other to the finish line using different characters from Sega franchises. The game features new mechanics and improvements from the previous game sequel. One of the improved features of the game is that, at a certain point in the race, the players can alternate boat, car and plane modes. The car mode can earn boost by drifting in the corners and by performing stunts while in the air. The boat mode features boating physics which require the players to consider their vehicles turbulence considering the waves in the water. Plane mode is the fastest among the three modes. It gives player the option to move vertically and horizontally. The players can change modes by driving through the blue transformation gates. Weapons such as freezing snowballs, swarms of wasps, hot rod engines and blowfish are available for use to defeat your competitors. Star tokens are also to be collected which are scattered around the course or by attacking your opponents. These tokens can be spent in the slot machine between events to earn bonuses.