Collect all of the Muse Keys

Complete the Challenge of Atlas

Execute a 200-hit combo

Entertain the Persian harem

Finish all beam walks

Defend the Shores of Attica

Viewed all Side Stories on Ares Island.

Earn 105 Skill Points

Defeated the Titan and completed the main story on Ares Island.

Completed all Challenges on Ares Island and fully revealed the map.

Clear 10 Sonic CD Missions with an S rank

Defeat 10 Moto Bugs in Sonic the Hedgehog