In Sonic & Sega All-Stars, various Sonic and other Sega characters race against each other while using various Mario Kart-esque power-ups obtained by driving through item boxes. Some items affect others directly, while others are booby traps or provide a boost. The PS3 demo on display had Sonic, Amy, AiAi, and Amigo playable, and each had a different special move (not unlike the special items in Mario Kart: Double Dash). For example, Sonic turns into Super Sonic for invincibility and a speed boost, and Amy conjures a giant hammer. Commentators also provide quips and information about the various racers status.
Based on the Sega representatives comments and the 2010 release date, this game is still early in development. Sumo Digital is working on all three versions of the console game, but many details, such as any differences in gameplay or courses across the platforms, the final list of items, and the complete character line-up, have yet to be determined.
