Win
You beat the game.
35 ✓ December 5th, 2009
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ December 2nd, 2009
Casino
You got to the Casino Night Zone.
10 ✓ December 3rd, 2009
Chaos Emerald
You got one Chaos Emerald.
10 ✓ December 5th, 2009
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ December 2nd, 2009
All Multiplayer
You played all four multiplayer zones.
5 ✓ December 3rd, 2009
Chaos Master
You got all the Chaos Emeralds.
40 
Fast Chemical
You beat Chemical Plant Zone 1 in under 45 seconds.
20 
Super Sonic
You became Super Sonic.
20 
Extended Super
You stayed in Super Sonic mode for one minute.
20 
Xbox Live Racer
You won 10 versus zones on Xbox Live.
10 
Conquering Time
You beat the game in under an hour.
10