Fast Chemical
You beat Chemical Plant Zone 1 in under 45 seconds.
20 ✓ February 3rd, 2010
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ June 25th, 2009
Casino
You got to the Casino Night Zone.
10 ✓ December 22nd, 2007
Chaos Emerald
You got one Chaos Emerald.
10 ✓ December 22nd, 2007
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ December 22nd, 2007
All Multiplayer
You played all four multiplayer zones.
5 ✓ February 16th, 2013
Chaos Master
You got all the Chaos Emeralds.
40 
Win
You beat the game.
35 
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