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.
We begin moving through the old Aperture testing facilities, 5000 metres underground. Starting with Shaft 09, Sphere 1, we learn how to use the blue repulsion gel being piped into the test chamber. It's fairly straightforward: Use it to bounce your way around the test chambers. In the first one, I use the gel to jump off of a ledge and bounce over to the exit. The second chamber is similar, where I have to continue climing higher to bounce higher. In the second area of the chamber, the repulsion gel is spattered across two walls, and I simply bounce off of the walls to reach the storage cube. I plop it on its button, then I fly out of very high portal and beeeoinggg over to the exit. On to the next sphere...
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