Collect all Trophies.
Participate in a 30 Second Trial.
Race through a regular stage as Super Sonic.
Get all Skills.
Clear Sonic Generations.
Get all collectibles.
Take no damage from the final boss and clear the stage.
Collect all the Chaos Emeralds.
Defeat Egg Dragoon.
Clear all the Challenge Acts.
Complete all Challenge Acts featuring Sonic's friends.
Defeat Silver.
Play Ranking Attack on all stages.
Join the rankings.
Get all Red Star Rings.
Chat with each of Sonic's friends you have saved.
Restore the PLANET WISP Stage Gate.
Get Rank S in all Acts.
Get the Red Star Ring by using an Orange Wisp in PLANET WISP Act 2 and reach the goal.
Restore the ROOFTOP RUN Stage Gate.
Get the Red Star Ring atop the highest spot in ROOFTOP RUN Act 2 and reach the goal.
Restore the CRISIS CITY Stage Gate.
Reach the goal in CRISIS CITY Act 2 without being hit by a tornado-carried cars or rocks.
Defeat Perfect Chaos.
Clear half the Challenge Acts.
Defeat Shadow.
Restore the SEASIDE HILL Stage Gate.
Get Rank S in twelve Acts.
Get the Red Star Ring located in the hidden room in SEASIDE HILL Act 1 and reach the goal.
Restore the CITY ESCAPE Stage Gate.
Wreck 30 or more cars in CITY ESCAPE Act 2.
Restore the SPEED HIGHWAY Stage Gate.
Get the Red Star Ring located on the shortcut route in SPEED HIGHWAY Act 2 and reach the goal.
Perform all of Sonic's moves in Act 2.
Get Rank S in seven Acts.
Defeat Death Egg Robot.
Defeat Metal Sonic.
Restore the SKY SANCTUARY Stage Gate.
Clear SKY SANCTUARY Act 1 without falling and losing a life.
Defeat 100 enemies.
Restore the CHEMICAL PLANT Stage Gate.
Clear CHEMICAL PLANT Act 2 without entering the water.
Get Rank S in three Acts.
Find the spring hidden in GREEN HILL Act 1 and reach the goal with a Red Star Ring.
Reach the goal without dropping any of the rings you collected in GREEN HILL Act 1.
Restore the GREEN HILL Stage Gate.
Pull off a seven or more trick combo or six trick combo ending in a finishing trick.
Get Rank S in an Act.
Clear GREEN HILL Act 1 within one minute.
Race through the first stage.