Half Life: Opposing Force Cheat Codes

Original levels
You can play all the Half-Life levels that Gordon Freeman went through as Adrion Shepard, but in the lab none of the scientists will talk to you.

Hidden audio
Approach the Boss of Opposing Force to hear backwards audio composed of the phrase "To win the game you must kill me Randy Pitchford" when played correctly. Randy Pitchford is the leader of the development team at Gearbox Software.

Cheat Codes
Load the game with the "hl.exe -dev -console -game gearbox" command line. Then while playing a game, press ~ to display the console and enter one of the following codes to activate the corresponding cheat function:

RESULT	CHEAT CODE
God mode	/god
All weapons with full ammo	/impulse 101
No clipping mode	/noclip
Adjust gravity	sv_gravity [-999 - 999999]
Spawn indicated item	/give [item name]
Spawn indicated weapon	/give weapon_[weapon name]
Spawn indicated ammo	/give ammo_[ammo name]
Map select	/map [map name]

Weapon names
Use one of the following weapon names with the "/give weapon_[weapon name]" code:

Weapon	Weapon name
.357 Magnum	357
9mm Assault Rifle	9mmar
9mm Handgun	9mmhandgun
Crossbow	crossbow
Crowbar	crowbar
Desert Eagle	eagle
Displacer	displacer
Egon Gun	egon
Gauss Gun	gauss
Grapple	grapple
Hand Granate	handgrenade
Hornet Gun	hornetgun
Knife	knife
Laser Tripmine	tripmine
M249 SAW	m249
M40A Sniper Rifle	sniperrifle
Pipewrench	pipewrench
Rocket Thrower	rpg
Satchel Charge	satchel
Shock Rifle	shockrifle
Shotgun	shotgun
Snark	snark
Spore Launcher	sporelauncher

Ammo names
Use one of the following ammo names with the "/give ammo_[ammo name]" code:

Ammo type	Ammo name
.357 Magnum	357
9mm Assault Rifle	9mm
9mm Handgun	9mm
Crossbow	crossbow
Egon Gun	egonclip
Gauss Gun	gaussclip
M249 SAW	556
M40A Sniper Rifle	762
Rocket Thrower	rpgclip
Shotgun	buckshot
Spore Launcher	spore

Map names
Use the following map names with the "/map [map name]" code:

Boot Camp

ofbooto
ofboot1
ofboot2
ofboot2
ofboot3
ofboot4

Regular game

of0a0
of1a1
of1a2
of1a3
of1a4
of1a4b
of1a5
of1a5b
of2a1
of2a1b
of2a2
of2a3
of2a4
of2a5
of2a5b
of3a1
of3a1b
of3a2
of3a3
of3a4
of3a5
of3a6
of4a1
of4a2
of4a3
of4a4
of4a5
of5a1
of5a2
of5a3
of5a4
of6a1
of6a2
of6a3
of6a4
of6a4b
0f6a5
of7a0