| Achievement | How to unlock
|
|---|
| All Stages Cleared! ( 100 points ) | Defeat the final boss and view the ending.
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| Contender ( 50 points ) | Upload your recorded clear times for all Time Attack stages.
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| Crush Dr. Eggman ( 50 points ) | Defeat a boss for the first time.
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| Enemy Hunter ( 50 points ) | Defeat 1,000 enemies.
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| Golden Flash ( 100 points ) | Clear all Acts as Super Sonic.
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| Immortal ( 100 points ) | Build up 99 or more extra lives.
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| Ring Collector ( 100 points ) | Collect all the Rings in 'Special Stage 1' and Clear the stage.
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| Speed's My Game ( 100 points ) | Clear SPLASH HILL ZONE ACT 1 in less than a minute.
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| Super Sonic Genesis ( 100 points ) | Axquire all seven Chaos Emeralds.
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| The First Chaos Emerald ( 100 points ) | Acquire a Chaos Emerald.
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| The Story Begins ( 50 points ) | Clear Splash Hill Zone, Act 1.
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| Untouchable ( 100 points ) | Clear the E.G.G. STATION ZONE without taking any damage.
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