Cheat mode:
Hold [Ctrl] + [Option] + [Shift] and type one the following codes during game play to activate the corresponding cheat function.

Invincibility	blorb
Unlimited ammo	cia
Disable heat tracking	coldmiser
View MW2 Sim Programmer Dorcs web pages	dorcs
One time nuclear weapon	enolagay
Jump jets	flygirl
Toggle mini-front view and mini-rear view	front or tlofront
Toggle mission time limit	hangaround
End mission successfully	icanthackit
End mission with failure	idkfa
Enable time compression key	meepmeep
Disable time compression key	unmeepmeep
Toggle bounding spheres	michelin
Toggle infinite Jumpjet power	mightymouse
"Freebirth vulgarity will not be tolerated!" message	shit or fuck
Free-floating external camera1	tinkerbell
X-ray vision2	xray
Time expansion enabled	zmak
"ATTENTION ENEMIES: Don't mess with the blimp." message	lairdo
Hidden message	dei

1. Press C to disable this code.
2. Use the Enhance Imaging option to see through walls or mountains. Press W ones to disable this code.

Bonus mechs (Trials Of Grievance):
Enter the "Star configure" screen and change your character's name to Enzo. The Elemental, Tarantula, and Battlemaster mechs will now be selectable. Change your character's name to Calvin to access the Dire Wolf and Fire Moth mechs. Change your character's name to Hobbes to add the Tarantula mech between the Dire Wolf and Fire Moth.