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Portal 2 - Perpetual Testing Initiative Trailer

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Published on Apr 30, 2012

No one knows how to make a trailer quite like Valve. Whether or not this level editor DLC interests you, you should definitely watch this funny trailer.

Head over to IGN for more Portal 2:
http://ps3.ign.com/objects/064/064329...

Subscribe to IGN's channel for reviews, news, and all things gaming: http://www.youtube.com/subscription_c...

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