All tracks:

Enter "WIBBLE" as a code at the cheat screen to unlock all tracks. If you entered the code correctly, you will hear a sound.

All racing levels:

Enter "FREEPLAY" as a code at the cheat screen to unlock all racing levels. If you entered the code correctly, you will hear a sound.

O2 Liveried:

Enter "UCANDO" as a code at the cheat screen to unlock O2 Liveried. If you entered the code correctly, you will hear a sound.

Programmer messages:

Enter "MUNCHKIN", "EDDROOLZ", or "EDDIEPOO" as a code at the cheat screen. If you entered the code correctly, you will hear a sound. A programmer message will appear at the end of the credits sequence.