This page contains Portal 2 Video Walkthroughs for Xbox 360 called "Walkthrough - Part 18 (Chapter 9 Part 1 )" and has been posted or updated on Jun 1, 2011 by TheMediaCows.
- Developer: Valve Software
- Publisher: Valve Software
- Genre: Action Shooter First-Person
- Release: Apr 19, 2011
- ESRB: Everyone 10+
Walkthrough - Part 18 (Chapter 9 Part 1 )
Watch this step-by-step Video Walkthrough, which may help and guide you through each and every level part of this game.
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