Sonic Colours DS Cheats & Unlockables.
Unlockable True Ending
Beat Terminal Velocity with all of the Chaos Emeralds. After the credits return to your game. After a cutscene you'll be able to play the final stage and fight Nega-Mother Wisp.
Unlockable Infinite Boost
Get all of the red rings in every level and mission to unlock an infinite boost option in the game. Please note that these Cheats are not available in Versus or Time trial modes.
Unlock Nega-Mother Wisp
Unlock alternate final boss Nega-Mother Wisp: Clear Terminal Velocity with all emeralds. After the credits are done go back into the game. You'll get a cutscene and the final stage will be accessible from the top of the world map.