21.2. The Clarifier: Part 2 | Campaign Duke Nukem Forever Guide

Last update: 11 May 2016

Soon after the level loads, you will land in a room infected by aliens. Get to the other side and enter the round ventilation shaft along the tentacles and scaffoldings. There are quite a few cocooned bodies in the area which will allow you to restock on ammo and explosive materials.

After getting out of the vent, jump along the spools hanging on the water to reach the other "shore". Use the corridor on the other side to reach the room with an answering machine on the wall. If you have been following this guide, you should unlock Call Waiting after listening to the recorded message, as it's the last one in the game.

By going further along the corridor you will reach a flooded room. Cross the red pipes onto the main bridge, collect the explosives needed to blow up the dam and go down. Use the bridge control panel to turn it by 180 degrees. Octabrains will be disturbing you, so use the supplies from the crate.

Avoid the electric bolts to reach the switch, turn off the power and return to the middle of the bridge.

Jump down from it into the water, turn the valve at the bottom and swim into the opened channel.