Create a new profile and enter "SECRETS" as a name to activate cheat mode. Enter the options menu, select "Trophies", then select the "Cheat Menu" option. Enter one of the following codes to at the cheat menu to activate the corresponding cheat function:
Enter "gimmiethelot" as a code to unlock all bonuses.All tracks
Enter "gimmieworlds" as a code to unlock all tracks.All cars
Enter "gimmiecars" as a code to unlock all cars.