The following are cheats which work only with Sonic Jam:
Time Attack Sonic World: At the title screen menu, highlight Sonic World and press +. Hold + until Sonic World begins and a clock timer appears. Collect 100 rings before the time runs out to receive a Secret Surprise.
Clean Pause: To make the pause menu vanish, press ++.
Loop Movie: Hold while choosing a movie in the movie theater.
View movies in order: Go into the theater in Sonic World, hold and press . All the movies will play, one after the other.