Then look up - some of it has sprayed onto a surface above another walkway. Use the white gel on the floor to portal down to the lower level. Once in the pump station, walk down the metal walkway and flip the three switches. Pump Station Gamma will be on your right - portal up to it and enter.

Portal up to the walkway and through the door. Walk into thefirst roomand to the end of the path (where there's a large closed door), then turn around and look up - you'll see a metal walkway and a door with an Emancipation Grill. You'll bounce off the Repulsion Gel and to the exit. Run down it, through the wall and over the ramp. Now, leaving a portal in front of the ramp, return to your runway. Portal over to it, and cover its short ramp with Propulsion Gel. Portal over to the button and drop the cube on it - the platform will invert, creating a gel-covered springboard for your final jump to the exit door.įacing the button and the now-inverted platform, look to your left and you'll see the finalarea you need to access. The gel will coat an invertiblebit of ceiling above it. Fire a portal onto the floor of the button platformand send some Repulsion Gel through it. Standing on the starting platform,facing the gap to the runway, you should be able to see the next area to your left(there's a large red button on it, which is where your cube goes. Grab the cube, and return to the gel pipes with it. Run through it, and you'll fly out, bounce off the Repulsion Gel, and reach a distant platform which houses a cube. Fire a portal into the wall in front of you, and another onto the angled surface above it. Portal over to the run way and walk to the other end of it. A bit of the blue goo will shoot out of your portal and hit a platform above the runway. Now fire a portal onto the angled surface, and one beneath the Repulsion Gel.

Fire a portal at the end of the runway, and another beneath the Propulsion Gel to cover it with speedy red goo. Behind them, you should see an isolated area which will act as a good runway. First, walk over to the dripping tubes of Repulsion and Propulsion Gel. This complex chamber is done in three parts. Repeat the run and jump to the tower, but this time,instead of smacking into the tower, fire a portal into itso that you fly through it and out of your portal on the other side. Leave a portal on the upper surface, and fire the other onto a surface on the starting platform to return to your runway. Walk to the other side of the tower, and use the two surfaces - one in front of you, and one above you - to reach the upper level. Run down your red runway toward the patch of Repulsion Gel, using it to jump across the gap to the tower.

Portal 2 walkthrough ch 8