Worlds Collide - Half-Life Guide - IGN (2024)

The last episode in Opposing Force, you'll find yourself first battling endless hordes of Black Ops personnel, and then one of the most badass monsters to grace a PC screen. More than 100 people wrote in looking for help on how to kill the final boss, and you can finally find out how below.

A word of advice: work slow, and smart -- if there's a way to take out large groups of enemies at once, don't miss it.

  • You start at the bottom of the elevator you were on at the end of the last episode. You're in a huge warehouse, with crates being loaded on a conveyor. Black Ops personnel are everywhere, and it will be hard to snipe the sniper babes, as the usually move too fast. Use the MP5, grenades and satchels if you have them, and start along by hugging the left wall.
  • After a few moments, get your displacer ready -- you'll find a large group of Ops clustered together. A good shot can take out 6 or 7 of them, and make your life a lot easier.

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  • Continue along the conveyor belt line, cross over at the end and climb up the boxes there. At the far end, you can drop down to the left, towards the beginning of the conveyor. If you time it right, you can duck in and out from alcove to alcove and get to the next area.
  • After leaving the conveyor area, shoot the Ops above you and ride the elevator platform to your right upward. From there, work your way forward and to the right, until you come to a series of boxes, crates and other assorted items forming a stairway of sorts upward.
  • Make your way upward, jumping from crate to crate, until you reach the top area. Move to the opening at the right -- slowly -- and peek below. You'll see a huge battle between Ops and aliens going on. Let the battle rage as long as possible without being seen -- it will only make your job easier.
  • In front of you are a few swinging crates. Jump from crate to crate and work your way across the warehouse room from above. Try and attack any remaining enemies from this lofty position -- it's much easier than trying to stand toe-to-toe with them.
  • Drop down and open the large door, making sure to eliminate any remaining enemies first -- you want to hear what Barney has to say on the other side.
  • Once in the warehouse door, shut the door behind you and listen to Barney. Apparently there's a huge alien downstairs, and it's "the nastiest-looking thing yet!" Stock up on all the weapons and ammo you can, and ride down the moving platform to the final epic battle of Opposing Force.
  • After riding the platform downstairs, you'll arrive at a windy area that seems to be having some trouble with gravity. You'll feel some resistance as you move forward, but it's nothing to be concerned about. Move forward, go down the stairs, and open the door.

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  • This is the scene for your final battle, and there are a few areas of note to keep track of: on one side, a rope you can use to climb to the upper level, and a healing pool in the far corner. The bigger room has two catwalks on either side of a large stage, with mounted guns on each side. Below is a pit you don't want to fall into. Above the left catwalk are some alien plants, which will come in handy indeed. Man the gun on the right catwalk and wait.
  • Eventually, a BIG fella will come out of the purple portal. It may be a few seconds before you can register the first shot, but keep aiming for his right eye. When you hit him, the monster will convulse a little. Use this opening to scramble to the left catwalk and mount the other cannon.
  • With the left cannon, shoot the boss' left eye. At this point, the alien will go completely berserk, and a hole in his stomach will open, revealing a purple portal. In a few seconds, a shock trooper will appear from this portal, but before that happens, fire as many shots from the cannon into the heart of the portal.
  • While this is going on, you'll want to keep clear of the alien's dangerous breath, and the various swings he'll take at you. When the shock trooper spawns, run around the catwalk to the rope area, kill the baddie, and heal yourself up at the pool if necessary.
  • The key to defeating the boss is to pump as many shots into the alien's stomach-portal-thingy as possible. You will have to go through the above cycle a few times, depending on what skill level you're playing on, but a few things will happen along the way to make this more difficult.
  • After the first cycle, the alien gets increasingly violent, and the room starts to fall apart. The catwalk connecting the left and right sides of the room collapses, and the ladder leading up to the left cannon breaks as well. Your only alternative at this point is to climb to the right cannon, use the barnacle grapple, and grapple over to the left cannon at the right moment.
  • I eventually found a cycle that worked well for me: (1) grapple to the left cannon, shoot the left eye; (2) jump down, climb the rope, heal; (3) run to the right cannon, shoot the right eye; (4) shoot the portal repeatedly when the alien's stomach opens; (5) kill the shock trooper that teleports out.
  • Depending on how accurate you are with the cannons, you may have to repeat this cycle a LOT -- 10 times or more is not out of the question. However, keep pounding away at the heart of the portal when you can, healing yourself as often as needed, and you'll eventually beat the big guy. Watch as the alien retreats into the portal, and enjoy the game's concluding cinematic.

(NOTE: We've received many, many emails saying that after beating the final boss, the monster retreats and nothing happens. This appears to be a bug with the game, but the patches for the game seem to fix the problem. Be sure to grab the latest Half-Life / OpFor patches at FilePlanet if you don't get the ending sequence after beating the final boss.)

Congratulations! You've just finished Half-Life: Opposing Force!

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Now it's time to try Blue Shift and see things from the security guard's point of view!

Up Next: Blue Shift

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In This Guide

Worlds Collide - Half-Life Guide - IGN (1)

Half-Life: Initial Encounter

Valve

PC

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OverviewWalkthroughBasicsOpposing Force

Worlds Collide - Half-Life Guide - IGN (2024)

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