Originally posted by mtucker
Yeah, just keep hitting him in the nut sack until he runs to another area. Repeat.

Gonarch's Lair
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Whoa...weird...see that spider thingy? Shoot it's belly, and soon it'll
start running away. Give chase and keep aiming for the sac.

Keep on chasing and shooting, and you'll pass one pit, then reach
another. You can choose to drop down and take the time to kill the spider,
or let the spider fall, and you can kill it with your snarks. Either
way works. Don't forget to take out the headcrabs as well.

The trees there will protect you, but you won't need it. Move on.

Originally posted by Chaos
What's a snark?

[Originally posted by Chaos
those little bugs that attack when you toss them

Gonarch's Lair

You appear in a large, open area. Nearby is a dead man in an HEV Suit. Batteries and a case of assorted ammunition lie beside him. Take the Batteries, but not the ammunition; immediately look for a place where a tall rock rises, near the "edge of the world." When you find this rock, you'll see a narrow space between it and the edge of the world. Walk behind the rock, so that you're protected from the Gonarch. You should be able to see a healing pool; long-jump to it whenever you're injured. Start shooting the Gonarch from behind the rock. If you're lucky and the Gonarch stands in the right spot, you can shoot it through a crack in the rock where you're extremely hard to hit. Eventually you'll deal enough damage to the Gonarch that it flees, breaking through a wall and running down a tunnel. Collect the ammo from dead man in the HEV Suit, heal yourself in the healing pool and follow the Gonarch down the tunnel. Collect a Battery and some ammo along the way. Eventually the tunnel ends in another open area. Stay back in the tunnel, avoiding the small, whipping tentacles, and shoot a few RPG rockets into the Gonarch. It will charge down the tunnel toward you. Do your best to leap aside and run out into the open area.

Circle-strafe around the open area, firing Combat Rifle grenades and other high-powered ordnance at the Gonarch. Note that there's a hole in the middle of the combat area, partially obscured by vines. Take care or you'll fall through! Eventually you'll deal enough damage to the Gonarch that it breaks down another wall and flees. Don't follow it yet. Instead, look for a small hole in the ground, not the larger, vine-covered hole in the center of the area. Drop down the small hole and walk into a central area with a hole in the middle and two other ledges. Jump to the left ledge and heal yourself in a healing pool in a chamber beyond it. Return to the central area and jump to the other ledge, where you'll collect some ammo and find a trampoline that takes you back to the main level. Approach the hole the Gonarch ran through. Jump down into it, but take care to leap to a ledge on the other side of the hole, instead of dropping all the way down in a single fall and injuring yourself.

Drop down into the pit. The Gonarch sits above, like a spider on a web. Circle-strafe around the pit, firing RPG rockets and Combat Rifle grenades at the Gonarch, and avoiding miniature Headcrabs. When you've shot the Gonarch enough, it drops from its web. Let 'er have it with more heavy-duty weapons; if you have any ammo for the Gluon Gun, that's ideal. A few seconds of Gluon Gun fire should do the trick. As the dead Gonarch crumples to the ground, a hole opens in the floor. You can leap right down into it and teleport to the next level, or look into it first and locate a ledge above the teleporter. If you leap to the ledge instead of all the way to the bottom, you can use a healing pool. Jump into the teleporter when you're done.