Chaos Master
You got all the Chaos Emeralds.
40 ✓ January 1st, 1753
Win
You beat the game.
35 ✓ January 1st, 1753
Fast Chemical
You beat Chemical Plant Zone 1 in under 45 seconds.
20 ✓ September 15th, 2008
Super Sonic
You became Super Sonic.
20 ✓ January 1st, 1753
Extended Super
You stayed in Super Sonic mode for one minute.
20 ✓ January 1st, 1753
Fast Emerald
You beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.
15 ✓ February 8th, 2008
Xbox Live Racer
You won 10 versus zones on Xbox Live.
10 ✓ September 20th, 2008
Casino
You got to the Casino Night Zone.
10 ✓ February 8th, 2008
Chaos Emerald
You got one Chaos Emerald.
10 ✓ February 9th, 2008
Conquering Time
You beat the game in under an hour.
10 ✓ January 1st, 1753
Emerald Hill
You cleared the Emerald Hill Zone 1.
5 ✓ February 8th, 2008
All Multiplayer
You played all four multiplayer zones.
5 ✓ September 16th, 2008