America - Front
America - Back
Complete each of the following achievements below to get the allotted gamerscore.
Unlockable: | How to unlock: |
All Multiplayer (5) | Play all four multiplayer zones. |
Casino (10) | Get to the Casino Night Zone. |
Chaos Emerald (10) | Get one Chaos Emerald. |
Chaos Master (40) | Get all the Chaos Emeralds. |
Conquering Time (10) | Beat the game in under an hour. |
Emerald Hill (5) | Clear the Emerald Hill Zone 1. |
Extended Super (20) | Stay in Super Sonic mode for one minute. |
Fast Chemical (20) | Beat Chemical Plant Zone 1 in under 45 seconds. |
Fast Emerald (15) | Beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode. |
Super Sonic (20) | Become Super Sonic. |
Win (35) | Beat the game. |
Xbox Live Racer (10) | Win 10 versus zones on Xbox Live. |
Unlockable | How to Unlock |
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