If you want to buy Portal 2: http://amzn.to/PortalII
This is the15th part of a full gameplay walkthrough of Valve's Portal 2 on the XBOX 360, Playstation 3, and PC. This video includes the Third part of Chapter 8: The Itch (Levels 5-6, 11-12). The levels are not clearly indicated so I took some liberty in sectioning them off. Played on the Xbox 360.
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Developer: Valve Corporation
Publisher: Valve Corporation