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Portal 2 Walkthrough / Chapter 3 - Part 9: Room 17/22

Check out this Portal 2 walkthrough and beat Chapter 3 - Part 9: Room 17/22 with this online demo.


It says this next test was designed by one of Aperture's Nobel Prize winners. It doesn't say what the prize was for. Well, I know it wasn't for being immune to neurotoxin.

I bet you think I forgot about your surprise. I didn't. In fact, we're headed to your surprise right now. After all these years, I'm getting choked up just thinking about it.

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