Select 'Cheat Codes' at the 'Options' menu and then enter one of the following case-sensitive codes (without the quotes) to enable the corresponding effect. You will hear the sound of an engine if the code has been entered correctly.
Unlock ALL Locations: Enter 'WHERETO' as a code to unlock ALL locations.
Unlock ALL AI Characters: Enter 'ALLAI' as a code.
Unlock ALL ATVs: Enter 'COUCHES' as a code.
Unlock ALL Gear: Enter 'GEAREDUP' as a code.
Unlock ALL Helmets: Enter 'SKULLCAP' as a code.
Unlock ALL Goggles: Enter 'WINDOWS' as a code.
Unlock ALL Boots: Enter 'KICKS' as a code.
Unlock Justin Brayton and KTM Bikes in Arcade Mode: Enter 'READYTORACE' as a code.