Avatar Awards
| Unlockable | How to Unlock |
|---|---|
| Sonic Costume (Body) | After collecting the 7 Chaos Emeralds, defeat the final boss 1 more time |
| Sonic Costume (Head) | Collect all rings during the ending of the final stage |
Achievements
| Achievement | Description |
|---|---|
| All Stages Cleared! (10) | Defeat the final boss and view the ending. |
| Contender (10) | Upload your recorded scores and clear times for all stages. |
| Crush Dr. Eggman (5) | Defeat a boss for the first time. |
| Enemy Hunter (10) | Defeat 1,000 enemies. |
| Golden Flash (10) | Clear all Acts as Super Sonic. |
| Immortal (25) | Build up 99 or more extra lives. |
| Ring Collector (15) | Collect all the Rings in 'Special Stage 1' and Clear the stage. |
| Speed's My Game (35) | Clear SPLASH HILL ZONE ACT 1 in less than a minute. |
| Super Sonic Genesis (30) | Acquire all seven Chaos Emeralds. |
| The First Chaos Emerald (5) | Acquire a Chaos Emerald. |
| The Story Begins (5) | Clear SPLASH HILL ZONE, ACT 1. |
| Untouchable (40) | Clear the E.G.G. STATION ZONE without taking any damage. |
