Select pro career mode and then enter CHACHING as a name. If the code has worked then the game will return to the main menu. Now enter a name of your choice and begin play with all ATV's now unlocked.
All Tracks
Select pro career mode and then enter WHATEXIT as a name. If the code has worked then the game will return to the main menu. Now enter a name of your choice and begin play with every track now unlocked.
Expert Mode
Select pro career mode and then enter ALLOUTAI as a name. If the code has worked then the game will return to the main menu. Now enter a name of your choice and begain play the CPU AI noticeably enhanced.