Emerald Hill
Clear the Emerald Hill Zone 1.



Fast Emerald
Beat Emerald Hill Zone 1 in under 35 seconds in single-player or co-op mode.



Fast Chemical
Beat Chemcial Plant Zone 1 in under 45 seconds.



Casino
Get to the Casino Night Zone.



Chaos Emerald
Get one Chaos Emerald.



All Multiplayer
Play all four multiplayer zones.



Online Racer
Win 10 versus zones in online play.



Win
Beat the game.



Super Sonic
Become Super Sonic.



Extended Super
Stay in Super Sonic mode for one minute.



Conquering Time
Beat the game in under an hour.



Chaos Master
Get all the Chaos Emeralds.