Moon gravity:
At the main menu, press Up, Up, Up, Up, R1, Square, Circle.
Unlimited turbo:
At the main menu, press R2, L1, Square, Circle, Circle, Circle.
Unlimited nitro:
At the main menu, press R2, L1, Square, Circle, Circle, Circle.
The Genie has more
Jeremy McGrath Supercross World Cheats at CheatingDome.com.
Get the best selection of
Jeremy McGrath Supercross World Cheats, Codes & Walkthrough/Guide/FAQ for PS2 from Cheat Code Central