Go to the extras screen from the main menu and enter codes to unlock the following.
| Effect | Code
|
|---|
| AAA Shell | Chet, Skidmark, Smooth Move, Skidmark.
| | Firestone Shell | Turbo, Whiplash, Turbo, White Shadow.
| | New Shell | Turbo, Chet, White Shadow, Turbo.
| | New Shell | Smooth Move, White Shadow, Smooth Move, Turbo.
| | New Shell | Smooth Move, Turbo, Burn, Smooth Move.
| | New Shell | Whiplash, Skidmark, Smooth Move, Whiplash.
| | New Shell | Skidmark, Whiplash, Turbo, Skidmark.
| | Reverse Mode | White Shadow, Turbo, Smooth Move, White Shadow.
| | Turbos Original Racing Shell | Burn, Smooth Move, Turbo, Burn.
| | Unlock Skidmark | Skidmark, Whiplash, Turbo, Burn.
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