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