See Portal 2’s Pneumatic Diversity Vents and Thermal Discouragement Beams

VIDEO: New clips from Valve’s Portal 2 demo at E3 show off dangerous puzzles

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Today, Valve released two new videos from the Portal 2 demonstration at E3. Check out the Aperture Science training videos for the Pneumatic Diversity Vents and the Thermal Discouragement Beams for a sneak peak at some of the first-person puzzler%26rsquo;s new brain teasers.

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