Restore the RAIL CANYON Stage Gate.
Restore the SPACE COLONY ARK Stage Gate.
Collect all Trophies.
Restore the GREEN HILL Stage Gate.
Defeat Death Egg Robot.
Defeat Perfect Chaos.
Defeat Egg Dragoon.
Defeat Metal Sonic.
Defeat Shadow.
Defeat Silver.
Collect all the Chaos Emeralds.
Clear Sonic Generations.
Take no damage from the final boss and clear the stage in Sonic Generations.
Get Rank S in all Acts in Sonic Generations.
Restore the CHEMICAL PLANT Stage Gate.
Clear all the Challenge Acts in Sonic Generations.
Get all Skills.
Rescue all Chao.
Get all Red Star Rings.
Get all collectibles in Sonic Generations.
Restore the KINGDOM VALLEY Stage Gate.
Restore the SUNSET HEIGHTS Stage Gate.
Restore the CHAOS ISLAND Stage Gate.
Restore the SKY SANCTUARY Stage Gate.
Clear RADICAL HIGHWAY Act 2.
Defeat Biolizard.
Defeat Metal Overlord.
Defeat Mephiles.
Clear Shadow Generations.
Take no damage from the final boss and clear the stage in Shadow Generations.
Get Rank S in all Acts in Shadow Generations.
Clear all the Challenge Acts in Shadow Generations.
Deliver all the rocket parts to Orbot and Cubot.
Open all Collection Boxes in White Space.
Restore the SPEED HIGHWAY Stage Gate.
Get all collectibles in Shadow Generations.
Restore the CITY ESCAPE Stage Gate.
Restore the SEASIDE HILL Stage Gate.
Restore the CRISIS CITY Stage Gate.
Restore the ROOFTOP RUN Stage Gate.
Restore the PLANET WISP Stage Gate.
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