Chaos Master
You got all the Chaos Emeralds.
40 ✓ December 4th, 2009
Win
You beat the game.
35 ✓ December 4th, 2009
Fast Chemical
You beat Chemical Plant Zone 1 in under 45 seconds.
20 ✓ December 4th, 2009
Super Sonic
You became Super Sonic.
20 ✓ December 4th, 2009
Extended Super
You stayed in Super Sonic mode for one minute.
20 ✓ December 4th, 2009
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ December 4th, 2009
Xbox Live Racer
You won 10 versus zones on Xbox Live.
10 ✓ December 14th, 2009
Casino
You got to the Casino Night Zone.
10 ✓ December 4th, 2009
Chaos Emerald
You got one Chaos Emerald.
10 ✓ December 3rd, 2009
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ December 3rd, 2009
All Multiplayer
You played all four multiplayer zones.
5 ✓ December 4th, 2009
Conquering Time
You beat the game in under an hour.
10