At the main menu, select "Options", "Cheat Codes", then enter one of the following codes to activate the corresponding cheat function:
Enter "PLAYALL" as a code to unlock all Arcade mode races, mini-games, and Story mode worlds.
Enter "MATTEL07" as a code to unlock all cars.
Enter "INSTYLE" as a code to unlock all Story mode wheel sets and Luigi's Casa Della Tires.
Enter "BUYTALL" as a code to unlock all bonus art for purchase.
Enter "ALLYORS" as a code to unlock all game bonuses except most Story mode races.
Enter "ZZOOOOM" as a code.
Enter "0TO200X" as a code.
Enter "PAINTIT" as a code.
Enter "NCEDUDZ" as a code.
Enter "VRYFAST" as a code to unlock the Expert difficulty setting.