Portal 2 co-op video walkthrough | GamesRadar+
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Portal 2 Xbox 360 Game. Complete in Box with Game Case and Manual | eBay
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Portal 2' now available for PC, Xbox 360, PS3 | Digital Trends
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You can make co-op Portal 2 test chambers now | Eurogamer.net
Portal 2: Co-op Splitscreen Multiplayer Gameplay Walkthrough - WELCOME CHEST | Part 6 - YouTube
![Portal 2: Co-op Walkthrough - Part 3 [1080p HD] (PC/PS3/XBOX 360) - YouTube](https://i.ytimg.com/vi/8rFaOIeg1LA/maxresdefault.jpg "Portal 2: Co-op Walkthrough - Part 3 [1080p HD] (PC/PS3/XBOX 360) - YouTube")