Win
You beat the game.
35 ✓ September 14th, 2007
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ September 14th, 2007
Xbox Live Racer
You won 10 versus zones on Xbox Live.
10 ✓ October 9th, 2008
Casino
You got to the Casino Night Zone.
10 ✓ September 14th, 2007
Chaos Emerald
You got one Chaos Emerald.
10 ✓ September 14th, 2007
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ September 14th, 2007
All Multiplayer
You played all four multiplayer zones.
5 ✓ October 7th, 2008
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 
Conquering Time
You beat the game in under an hour.
10