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Portal 2 PC Review
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Portal 2 Review - IGN
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Review: Portal 2 (PS3, Xbox 360, Steam) – SideQuesting
Portal 2 (Xbox 360) - First 40 Minutes of Gameplay - YouTube
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A Beaming Review of Portal 2 – Stephen Niven
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Why only an Xbox 360 review for Portal 2? - GameSpot
Amazon.com: Portal 2 - Xbox 360 : Video Games
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Review: Portal 2 | Angry Bee Gaming
