Sonic Superstars

This is an action platformer in which players assume the roles of Sonic and his friends as they zoom around colorful zones and attempt to defeat Dr. Robotnik. As players speed through whimsical environments, they can jump on enemies' heads, causing them to transform into small creatures; Sonic and friends react to damage by losing coin-like rings and falling off-screen when defeated. Boss battles can depict more protracted combat, with cartoony explosions.