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Playing Orange Box's Portal : Momentum is Key in Orange Box's Portal

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Published on Mar 4, 2008

Momentum is key when shooting portals in mid-air at a platform; learn more tips about playing Orange Box's game Portal in this free computer gaming video clip on video games.

Expert: John Sexton
Bio: Raised in rural southern Illinois, John Sexton's entertainment options were limited to video games and sitting in the parking lot of the Mad Pricer grocery store.
Filmmaker: Doug Craig

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