Got Rank S in an act.

Defeated Metal Sonic.

Defeated 100 enemies.

Performed all of Sonic's actions in Act 2.

Completed the first stage.

Defeated Shadow.

Defeated Death Egg Robot.

Defeated Perfect Chaos.

Restored the CHEMICAL PLANT Stage Gate.

Restored the GREEH HILL stage Gate.

Restored the SKY SANCTUARY Stage Gate.

Restored the SPEED HIGHWAY Stage Gate.

Restored the CITY ESCAPE Stage Gate.

Restored the SEASIDE HILL Stage Gate.

Restored the CRISIS CITY Stage Gate.

Wrecked 30 or more cars in CITY ESCAPE.

Reached the goal in CRISIS CITY without being hit by a tornado-carried car.

Got the Red Star Ring located in the hidden room in SEASIDE HILL.

Cleared SKY SANCTUARY without falling even once.

Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring.

Cleared CHEMICAL PLANT without entering the water.

Got the Red Star Ring atop the highest spot in ROOFTOP RUN.

Got the Red Star Ring located on the shortcut route in SPEED HIGHWAY.

Got all collectibles.

Participated in a 30 Second Trial.

Cleared half the missions.

Cleared all the missions.

Got all Red Star Rings.

Played Time Attack on all stages.

Cleared a regular stage as Super Sonic.

Got all custom skills.

Got the Red Star Ring by using an Orange Wisp in PLANET WISP.

Got Rank S in acts 12 times.

Collected all the Chaos Emeralds.

Cleared Sonic Generations.

Cleared Green Hill within one minute.

Defeated Silver.

Defeated Egg Dragoon.

Restored the ROOFTOP RUN Stage Gate.

Restored the PLANET WISP Stage Gate.

Got Rank S in acts three times.

Got Rank S in acts seven times.

Completed all of Sonic's friends' Challenges.

Chatted with all of Sonic's friends you saved.

Took no damage while defeating the final boss.

Reached the goal without dropping any of the rings you collected in GREEN HILL Act 1.

Got Rank S in all acts.

Executed a trick with a seven-step combo or longer.

Joined the rankings.