Sonic Rivals

The game follows a story with six zones, split into two acts, where players must defeat bosses to progress. Defeating bosses is not enough; players also need to do it before the opponent does. In addition to the story mode, there is a cup mode where players can compete against each other wirelessly and collect power-ups during races.

Players can also collect cards by completing tasks in the game and trade them with other PSP owners wirelessly. These cards can be used for rewards or traded with friends.