Unlockable: Metal Sonic
Complete the game with Sonic, Knuckles, Silver, and Shadow.
Unlockable: Secret Forms
Chaos Zero
- Get every card in the game.
Metal
Sonic (2nd form)
- Complete Metal Sonics storyline, and
get the Metal Madness, Metal Overlord, and Neo Metal Sonic cards.
Super Shadow
- Unlock all of Shadows suits, complete
his storyline, and beat all of the challenges as Shadow.
Super
Silver
- Unlock all of Silvers suits, complete his
storyline, and beat all of the challenges as Silver.
Super
Sonic
- Unlock all of Sonics suits, complete his
storyline, and beat all of the challenges as Sonic.
Tikal
- Unlock all of Knuckle’s suits, complete
his storyline, and beat all of the Colosseum Highway challenges as
Knuckles.