All extras except Fury bike

At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "!SLACKER!" as a case-sensitive code to unlock all extras except for the Fury bike.

All events
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "IMP@TIENT" as a case-sensitive code to unlock all events.

All tracks
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "SNOWBATS" as a case-sensitive code to unlock all tracks.

All training bikes
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "NOSKILLS" as a case-sensitive code to unlock all training bikes.

All ATVs
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "CHACHING" as a case-sensitive code to unlock all ATVs.

All ATVs except G-Ride ATV
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "N0M0NEY$" as a case-sensitive code to unlock all ATVs except G-Ride ATV. -From: gandgmotorsports @ socal.rr.com

All rider gear
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "FITS" as a case-sensitive code to unlock all rider gear.

All tires
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "THICK=RUBBER" as a case-sensitive code to unlock all tires.

All exhausts
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "ENVIRONMENT" as a case-sensitive code to unlock all exhausts.

All other parts
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "MIX:MATCH" as a case-sensitive code to unlock all other parts.

All FMV sequences
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "ROCKNROLL" as a case-sensitive code to unlock all FMV sequences.

Extra money
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "+FOODSTAMPS+" as a case-sensitive code to get an extra $1,500.

Fast racers
At the main menu, select "Options", then choose "Player Profile". Select the "Cheats" option, then enter "ALLQUIKI" as a case-sensitive code.