Sonic & All-Stars Racing Transformed is a kart racing video game developed by Sumo Digital and published by Sega. It was released for the PlayStation 3, Xbox 360, and Wii U in November 2012, for PlayStation Vita in December 2012,[9] for Microsoft Windows in January 2013,[7] for Nintendo 3DS in February 2013, and for iOS and Android in January 2014.[8][10][11] The PS3 and Wii U versions of the game were released in Japan on May 15, 2014. Sonic & All-Stars Racing Transformed is the sequel to Sonic & Sega All-Stars Racing, the fourth installment in the Sega Superstars series, and the eighth racing game in the Sonic the Hedgehog series. The game was a launch title for the Wii U in North America and Europe.