Participate in a 30 Second Trial.
Get Rank S in three Acts.
Clear Sonic Generations.
Chat with each of Sonic's friends you have saved.
Pull off a seven or more trick combo or six trick combo ending in a finishing trick.
Join the rankings.
Perform all of Sonic's moves in Act 2.
Defeat 100 enemies.
Get Rank S in an Act.
Race through the first stage.
Reach the goal without dropping any of the rings you collected in GREEN HILL Act 1.
Clear GREEN HILL Act 1 within one minute.
Get Rank S in seven Acts.
Get Rank S in twelve Acts.
Get Rank S in all Acts.
Complete all Challenge Acts featuring Sonic's friends.
Get all Skills.
Get all collectibles.
Play Ranking Attack on all stages.
Get all Red Star Rings.
Clear half the Challenge Acts.
Clear all the Challenge Acts.
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