Got the Red Star Ring by using an Orange Wisp in PLANET WISP.
Cleared CHEMICAL PLANT without entering the water.
Cleared a regular stage as Super Sonic.
Completed all of Sonic's friends' Challenges.
Got Rank S in acts seven times.
Chatted with all of Sonic's friends you saved.
Cleared half the missions.
Cleared Sonic Generations.
Collected all the Chaos Emeralds.
Defeated Egg Dragoon.
Defeated Silver.
Restored the PLANET WISP Stage Gate.
Participated in a 30 Second Trial.
Joined the rankings.
Restored the ROOFTOP RUN Stage Gate.
Got the Red Star Ring atop the highest spot in ROOFTOP RUN.
Restored the CRISIS CITY Stage Gate.
Defeated Perfect Chaos.
Got Rank S in acts three times.
Wrecked 30 or more cars in CITY ESCAPE.
Defeated Shadow.
Restored the SEASIDE HILL Stage Gate.
Performed all of Sonic's actions in Act 2.
Restored the CITY ESCAPE Stage Gate.
Restored the SPEED HIGHWAY Stage Gate.
Defeated Death Egg Robot.
Defeated Metal Sonic.
Executed a trick with a seven-step combo or longer.
Restored the SKY SANCTUARY Stage Gate.
Defeated 100 enemies.
Cleared SKY SANCTUARY without falling even once.
Restored the CHEMICAL PLANT Stage Gate.
Got Rank S in an act.
Reached the goal without dropping any of the rings you collected in GREEN HILL Act 1.
Restored the GREEH HILL stage Gate.
Completed the first stage.
Cleared Green Hill within one minute.
Got Rank S in acts 12 times.
Got Rank S in all acts.
Took no damage while defeating the final boss.
Found the spring hidden in GREEN HILL Act 1 and reached the goal with a Red Star Ring.
Got the Red Star Ring located on the shortcut route in SPEED HIGHWAY.
Got the Red Star Ring located in the hidden room in SEASIDE HILL.
Reached the goal in CRISIS CITY without being hit by a tornado-carried car.
Got all custom skills.
Got all collectibles.
Played Time Attack on all stages.
Got all Red Star Rings.
Cleared all the missions.
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