Two-player Team Battle
Collect 20 emblems in the story or challenge modes to unlock the two-player team battle.
Two-player Special Stage
Collect 40 emblems in the story or challenge modes to unlock the two-player special stage.
Two-player Ring Race
Collect 60 emblems in the story or challenge modes to unlock the two-player ring race.
Two-player Bobsled Race
Collect 80 emblems in the story or challenge modes to unlock the two-player bobsled race.
Two-player Quick Race
Collect 100 emblems in the story or challenge modes to unlock the two-player quick race.
Two-player Expert Race
Collect 120 emblems in the story or challenge modes to unlock the two-player expert race.
Espio's Magic Trick
When playing with team Chaotix, push A+B to make Espio invisible.
Metal Sheen
Hold A and Y after selecting a 2-player level to have a "metallic" skin covering over your team.
Unlockable: Super Hard Difficulty
Beat the game with 141 Emblems and all A ratings.
Unlockables: CG Threatres
Team Chaotix Cinema: Complete Team Chaotix in Story Mode
Team Dark Cinema: Complete Team Dark in Story Mode
Team Rose Cinema: Complete Team Rose in Story Mode
Team Sonic Cinema: Complete Team Sonic in Story Mode
Unlockables: Last Story
Collect all 7 Chaos Emeralds and finish all stories.
Anyone can Fly
It is possible for any formation to fly. First go into FLY formation. Then start flying and switch to another formation. Even though the FLY formation is on top, the new leader will have the fly gauge. Pretty niffty, huh?