Sonic Kart 3D X

Sonic Kart 3D X is a mobile phone game released as part of the Sonic Cafe service offered by Sega. This game is a sequel to Sonic Racing Kart. In this game, players can compete against racers from all over Japan via network connectivity in a Grand Prix mode, or race against the best times on the network in the Time Attack mode. The player's own high scores can be uploaded for others to use.