Chaos Master
You got all the Chaos Emeralds.
40 ✓ July 3rd, 2010
Win
You beat the game.
35 ✓ July 3rd, 2010
Fast Chemical
You beat Chemical Plant Zone 1 in under 45 seconds.
20 ✓ July 4th, 2010
Super Sonic
You became Super Sonic.
20 ✓ July 3rd, 2010
Extended Super
You stayed in Super Sonic mode for one minute.
20 ✓ July 3rd, 2010
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ June 24th, 2010
Casino
You got to the Casino Night Zone.
10 ✓ June 25th, 2010
Chaos Emerald
You got one Chaos Emerald.
10 ✓ June 24th, 2010
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ June 24th, 2010
All Multiplayer
You played all four multiplayer zones.
5 ✓ July 14th, 2010
Xbox Live Racer
You won 10 versus zones on Xbox Live.
10 
Conquering Time
You beat the game in under an hour.
10