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.
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