GBA Color Scheme
On the main menu, press the R button to cycle through the different color schemes based on past GBA consoles.
Contributed By: sonicfan201.
Secret Stage Mode
Effect Code Secret Stage Mode Complete all 7 special stages, then, on the main menu, press Up, R, Down, L, Right, Left
Contributed By: MCPAC.
Extra Zone - Nonagression
Unlockable How to Unlock Extra Zone - Nonagression Get All 7 Chaos Emeralds, and beat the game once. Then beat the Final Zone again, with Sonic as the Team Leader.
Unlockable How to Unlock Sound Test Beat the final zone.
Contributed By: Bianca.
Time Attack (Boss)
In ALL zones and acts, get medals of all colors(Final and Extra zone also)
Contributed By: SneakyHawk.
Unlockable How to Unlock Amy Beat zone 4 act 3 with Sonic as leader
Unlock Bosses in Time Attack
First get the gold medals for every level and boss. Then beat Nonaggression. Cheese tells you that Boss Time Attack is available at the end of the credits.
Contributed By: Light the Hedgehog.
Unlockable How to Unlock Cream Beat zone 6 act 3 with sonic as leader
Unlockable How to Unlock Knuckles Using Sonic as your leader finish Stage 2 Act 3 and beat Gemerl.
Contributed By: HyperShadow87.
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