Half-Life: Opposing Force Easter Eggs

Hidden Chumtoad - 8.6/10 with 7 votes
At the beginning of the chapter "We Are Not Alone",
Just before you open the the blast door to the teleporter room, look up and you will see two vents, one on the ceiling and one opposite the blast door. Shoot the vent opposite the door 25 times and... more

pic A Return to the Original HL Training Ground - 7.8/10 with 31 votes
The transporter weapon has two modes of fire, the primary fires a transporter orb that "gets rid" of enemies, the secondary will transport you to some random safety zone on Zen (this conveniently use's 60% of your energy so it cannot be done again... more
6 Comments - read or post

pic Hidden Room - 7.5/10 with 40 votes
When you start Boot Camp use the Noclip cheat
and go through the floor.There will be a hidden
room with a message.
5 Comments - read or post

Assassin Bot - 7.3/10 with 194 votes
Go to the 1st real combat stage, called "we're pulling out!" or whatever. there is a security guard and scientist talking, right before a huge alien comes out and kills both of them. Before the alien appears, the cop says "Have you seen the new IG-88?"... more
2 Comments - read or post

"Haiku" the Egg of Mystery - 7.2/10 with 40 votes
while in the game (i think this will work in regular HL also... i know it works in opfor)

type "Haiku" in the console

or bind it ( "bind shift Haiku" )

best thing is... there are many outcomes
4 Comments - read or post

pic Half-Life Secret Penguin Weapon - 7.2/10 with 232 votes
oposing force has been out since november '99.... and this was never really found out until now (August 2000)....

in oposing force... type in the console "give weapon_penguin"

now you got a penguin with a grenade on his back that acts like a snark...... more
7 Comments - read or post

pic Computer Crashes - 7.1/10 with 34 votes
To see this one, start playing OpFor. When you're in the first level after the cinematic, get your power vest and then meet up with Otis, the fat security guard. While he's jabbering away, go up to the Windows computer in the room and "use" it. Try... more

Randy Pitchford a Fan of John Romero? - 7.1/10 with 77 votes
When you approach the Boss of Opp there is a Weird Mumble jumbo of sounds.

When played backwards they say "To win the game you must kill me Randy Pitchford"
Just like when you beat Doom 2 who was made by John Romero the Co-Founder of Doom. Like... more
1 Comments - read or post

pic Another Star Wars Reference - 5.7/10 with 6 votes
Remember in HL:Opfor the Pit Worm's level. Now when you slide down the pit into the broken trash compactor. Just in front of you there's a door with a bunch of red lights above it. Now go and watch the scene from star wars episode 4:New hope and look... more
2 Comments - read or post

pic Sunglasses - 5.5/10 with 16 votes
When you arrive at the teleporter room in the lambda core, you will see Gordon Freeman jump into the teleporter. If you jump in afeter him, you will die, but if you put the noclip cheat on and jump in you will be floating in midair. Go to Freeman and... more
8 Comments - read or post

Pictures of the Kids - 5.2/10 with 18 votes
Ok, in the game there is a filing cabinet/desk lying on the floor near the Gordan Freeman picture. if you crouch and look at the desk there is a picture with two kids (assuming the programmers kids)
3 Comments - read or post

Poem - 5.2/10 with 24 votes
Open the half-life\gearbox\pak0.pak file. Go into the gfx\env\ folder. There is a texture, named @hackup.tga or hackup.tga which says:

"HACK HACK HACK
ALL DAY LONG.

HACK HACK HACK
WHILE I SING
THIS SONG."

Not a big thing...
6 Comments - read or post

pic Mistery Egg Eye Producter Face - 4.5/10 with 2 votes
In the moment you get your teleport gun, you press right mouse button and you'll be teleported into the training area were the electrical mobs will be trying to attack the hologram. Break the glass to your right and you'll get a teleport to get out but... more
1 Comments - read or post

Hidden Names of People Who Made OF - 4.1/10 with 17 votes
Just like in Half Life where the names of some of the people who made it were put around the lockers in the locker room, the names of some of the people who made Opposing Force are also in certain places e.g at the start of the boot camp level look at... more
1 Comments - read or post

pic Gearbox and Valve - 3.9/10 with 44 votes
This one's pretty obvious. On the pit worm level to drain the toxic sewage you have to switch on the gearbox and the valve.
For those of you who doesn't know what this means, Gearbox was the company that made Opposing Force and Valve was the company... more
3 Comments - read or post

pic Scientists Humor in the Duck Jump Course! - 2.1/10 with 7 votes
There is an egg in this topic about going to the duck jump course from the original "HL".When you get there,get the shotgun and kill the aliens so they don`t annoy you.Put noclip on and fly up the the scientists observation course (Word Of Warning:Do... more
2 Comments - read or post

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