Xbox Live Avatar

An Avatar is a customizable avatar that can represent you in some Xbox 360 games and online features.

In the Sonic continuity, some games allow a person's Avatar to participate in the game, instead of the default characters.

Trivia

 * In Sonic & Sega All-Stars Racing for the Wii, Avatars are replaced with Mii's.

Sonic & Sega All-Stars Racing
Avatars can race in Sonic & Sega All-Stars Racing, your avatar drives the Ava-car 720 and it's All-Star Move is the Party Power where four Avatar friends pick up the player's car and start running while knocking out anything in their path.

Sonic Free Riders
Avatars will be playable and ride Extreme Gear.