Portal 2 Walkthrough: Chapter 7: Pump Station Gamma / Gel Pipe Hub (Let's Play, 1080p HD)

Portal 2 Video Chapter 7 (The Reunion): Pump Station Gamma / Gel Pipe Hub (Single Player) Welcome to my Portal 2 walkthrough in 1080p HD! For best viewing quality, click the fullscreen button in the YouTube player, then select 1080p, or «original» for even better than 1080p. Well, I can see the pipe shaft directly above me, which finally leads up and out of the massive shaft I've been in for 15 videos. I find a portalable surface to shoot white moon rock gel all over the shaft, then I use the new surfaces to portal up into the big gel hub. On the ceiling of the hub lies a big vault door, and I find the control room with the button to open it. The massive door drops open, extending the three gel pipes into the more modern Aperture labs chambers above....