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Portal E3 Demo: Parts 4 & 5 out now

portal 2 logo

Valve has released Parts four and five of the Portal E3 Demo in HD.

The clips show off two new gameplay tools: Pneumatic Diversity Vents and the Thermal Discouragement Beams.

"The bad news is these new puzzle elements can be hazardous to your health", says Valve. "The good news is they're even more hazardous to the health of turrets".

Good to know.

Parts two & three were posted earlier today. Parts six and seven will be released tomorrow.

Portal 2 releases in 2011 for PC, 360, Mac and PS3.

Watch the videos below.

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Portal 2

PS3, Xbox 360, PC

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Stephany Nunneley-Jackson

News Editor

Stephany is VG247’s News Editor, with 22 years experience (with 15 of them at VG247). With a brain that lacks adhesive ducks, the ill-tempered, chaotic neutral fembot does her best to bring you the most interesting gaming news. She is also unofficially the site’s Lord of the Rings/Elder Scrolls Editor.

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