Extreme Hybrid Racing Codes -

Cheat mode:
Choose the "Misc. Options" selection at the main menu, then enter XTRCHT! as a code. Note: You will not be able to save the game if this code has been enabled.

Invisibility:
Choose the "Misc. Options" selection at the main menu, then enter NOTHING as a code.

Upside down mode:
Choose the "Misc. Options" selection at the main menu, then enter CEILING as a code.

Skulls are monkeys:
Choose the "Misc. Options" selection at the main menu, then enter MONKEY as a code.

Skulls are monkey skulls:
Choose the "Misc. Options" selection at the main menu, then enter BONES as a code.

Display game version:
Choose the "Misc. Options" selection at the main menu, then enter VERDATE as a code.