Note: The codes will only work on games patched with the October 31, 2008 online update.

Cheat Mode:
While playing, at the PDA screen press LB, RB, RB, LB, RB, LB, LB, RB, RB, RB, LB to enable cheat mode.

Invincibility:
While playing, at the PDA screen press Up, Down, Left, Down, Right, Right.

Unlimited ammunition:
While playing, at the PDA screen press Up, Down, Left, Right, Left, Left.

All vehicles:
While playing, at the PDA screen press Up, Down, Left, Right, Right, Left.

All supplies:
While playing, at the PDA screen press Left, Right, Right, Left, Up, Up, Left, Up.

All airstrikes except Nuke:
While playing, at the PDA screen press Right, Left, Down, Up, Right, Left, Down, Up.

Nuke:
While playing, at the PDA screen press Up, Up, Down, Down, Left, Right, Left.

Refill fuel:
While playing, at the PDA screen press Up, Up, Up, Down, Down, Down.

All costumes:
While playing, at the PDA screen press Up, Right, Down, Left, Up.

Grappling hook:
While playing, at the PDA screen press Up, Left, Down, Right, Up.