Cheat Codes:

ALLAMMO - Gives you 999 ammo for all of the guns in your possession.
FLY - Lets you fly around.
GHOST - Lets you walk through walls.
GOD - Makes you invulnerable to all attacks.
INVISIBLE - Turns you invisible. To activate type invisible 1
KILLPAWNS - Kills all monsters.
WALK - Turns off "GHOST" or "FLY".
SLOMO followed by a number, slows or speeds up the game. 1.0 is normal.
PLAYERSONLY - Freezes time. Press again to resume.
OPEN MAPNAME - Jump to any map, just enter the name like OPEN DIG.
BEHINDVIEW 1 - Puts you in Tomb Raider style view.
BEHINDVIEW 0 - Resets view.

SUMMON followed by a space and one of the following keywords lets you add a weapon or an item to the world. Items will drop down in front of you.

AMPLIFIER
ARMOR
ASMD
ASBESTOSSUIT

AUTOMAG
BRUTE
CANNON
CLIP
DISPERSIONPISTOL
EIGHTBALL
FLAKCANNON
FLAKBOX

FLASHLIGHT
FLARE
FORCEFIELD

GESBIORIFLE
HEALTH
INVISIBILITY
KEVLAR SUIT
MINIGUN
NALI
RAZORJACK
RIFLE
SEARCHLIGHT
SHELLS

SHIELDBELT
SKAARJWARRIOR
SKAARJTROOPER
SLUDGE

STINGER
SUPERHEALTH
TOXINSUIT

QUADSHOT

TRANSLATOR