| Achievement | How to unlock
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|---|
| All Stages Cleared! (25 points) | Defeat the final boss and view the ending.
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| Casino Street Zone (5 points) | Finish all 3 Acts and boss round of Casino Street Zone
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| Centurion (5 points) | Get 120 rings in Mad Gear Zone Act 1.
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| Contender (10 points) | Upload your recorded clear times for all Time Attack stages.
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| Enemy Hunter (10 points) | Defeat 1,000 enemies.
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| Golden Flash (10 points) | Clear all Acts as Super Sonic.
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| Immortal (20 points) | Build up 99 or more extra lives.
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| Lost Labyrinth Zone (5 points) | Finish all 3 Acts and boss round of Lost Labrinth Zone
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| Mad Gear Zone (5 points) | Finish all 3 Acts and boss round of Mad Gear Zone
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| Ring Collector (15 points) | Collect all the Rings in 'Special Stage 1' and Clear the stage.
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| Speed's My Game (15 points) | Clear Splash Hill Zone Act 1 in less than a minute.
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| Splash Hill Zone (5 points) | Finish all 3 Acts and boss round of Splash Hill Zone
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| Super Sonic Genesis (30 points) | Acquire all seven Chaos Emeralds.
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| The First Chaos Emerald (5 points) | Acquire a Chaos Emerald.
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| The Story Begins (5 points) | Clear Splash Hill Zone Act 1.
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| Untouchable (30 points) | Clear the E.G.G. Station Zone without taking any damage.
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