Cleared the game

Achieved an S Rank with Sonic the Hedgehog for the first time

Collected half of the Sun Medals

Achieved an S Rank with Sonic the Werehog for the first time

Restored the fifth continent

Restored the fourth continent

Have attained Combat Level 10

Gave a souvenir to the Professor

Have mastered the Air Boost technique

Have attained Combat Level 5

Have mastered the Stomp technique

Cleared Act 1 of Tornado Defense without taking damage

Unlock all characters.