Unlock Characters
Complete the following tasks in Sonic's story to unlock the corresponding.

Unlock Shadow The Hedgehog:
Complete 'Crisis City' with Sonic

Unlock Silver The Hedgehog:
Complete 'Silver The Hedgehog' boss battle with Sonic



Unlockable Extras Menu at the Main Menu

Unlock Audio Room:
Complete Sonic, Shadow or Silver's story 100%

Unlock Theater Room:
Complete Sonic, Shadow or Silver's story 100%