Playstation 2 Cheats: Jeremy McGrath Supercross World Cheats

Moon gravity:
Press Up(4), R1, Square, Circle at the main menu. The lower left corner of the screen will flash to confirm correct code entry.

Unlimited turbo:
Press R2, L1, Square, Circle(3) at the main menu. The lower left corner of the screen will flash to confirm correct code entry.

Hint: All bikes:
Successfully complete the hardcore part of career mode.

Hint: Endo:
Hold L2 + Square at a good speed and you will ride on your front wheel.