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Portal 2 Xbox 360 Gameplay video - Start of game - Part 1 HD
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![Portal 2: Co-op Walkthrough - Part 1 [1080p HD] (PC\/PS3\/XBOX 360) (Gameplay)](http://i.ytimg.com/vi/JX7R6wvPg8o/mqdefault.jpg "Portal 2: Co-op Walkthrough - Part 1 [1080p HD] (PC\/PS3\/XBOX 360) (Gameplay)")
![Portal 2: Walkthrough - Part 1 (Chapter 1) (PS3\/X360\/PC) [1080p HD] (Gameplay)](http://i.ytimg.com/vi/43CL70JT4bY/mqdefault.jpg "Portal 2: Walkthrough - Part 1 (Chapter 1) (PS3\/X360\/PC) [1080p HD] (Gameplay)")
![Portal 2: Walkthrough - Part 1 (Chapter 1) (PS3\/X360\/PC) [HD] (Gameplay)](http://i.ytimg.com/vi/MT6niQgIqb8/mqdefault.jpg "Portal 2: Walkthrough - Part 1 (Chapter 1) (PS3\/X360\/PC) [HD] (Gameplay)")
![Portal 2 Walkthrough Part 1 (Xbox 360) [HD]](http://i.ytimg.com/vi/HxEx9huwF9g/mqdefault.jpg "Portal 2 Walkthrough Part 1 (Xbox 360) [HD]")
![Portal 2: Walkthrough - Part 1 (Chapter 1) (PS3\/X360\/PC) [1080p HD] (Gameplay)](http://i.ytimg.com/vi/k5ZFVr_HTMk/mqdefault.jpg "Portal 2: Walkthrough - Part 1 (Chapter 1) (PS3\/X360\/PC) [1080p HD] (Gameplay)")
![Portal: Still Alive [HD] Playthrough part 1 (Xbox 360)](http://i.ytimg.com/vi/1zUUNAahRv0/mqdefault.jpg "Portal: Still Alive [HD] Playthrough part 1 (Xbox 360)")
![Portal 2 - TV Spot Trailer [HD] (PC\/PS3\/XBOX 360)](http://i.ytimg.com/vi/Ec7MvC2Sv3c/mqdefault.jpg "Portal 2 - TV Spot Trailer [HD] (PC\/PS3\/XBOX 360)")
![Portal 2 - Panels Trailer [HD] (PC\/PS3\/XBOX 360)](http://i.ytimg.com/vi/4VNagjy-oeU/mqdefault.jpg "Portal 2 - Panels Trailer [HD] (PC\/PS3\/XBOX 360)")