Win
You beat the game.
35 ✓ September 19th, 2007
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ September 23rd, 2007
Casino
You got to the Casino Night Zone.
10 ✓ September 18th, 2007
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ September 15th, 2007
All Multiplayer
You played all four multiplayer zones.
5 ✓ September 20th, 2007
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 
Chaos Emerald
You got one Chaos Emerald.
10 
Conquering Time
You beat the game in under an hour.
10