SkyNET

For any of these codes to work, you must first hit Alt and \ at the same time. You don't need to hold down Alt +\, but when you're done typing the code hit Enter.

Arnold	All weapons
counters	Shows current coordinates
garble	Toggle cheat code garble
hello	Gives you a response
icantsee	Infrared targetting scope with zoom
illbeback	Ends mission
nitrous	Unlimited Time
slugs	More weapons
supertracker	Tracker
superuzi	The Super Uzi!!!
surgery	Full Health
target	target lock
version	Shows version
whoami	Shows your name
willnotstop	God Mode

Thanks to Game Revolution reader Lord Killer!