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From https://portal.wecreatestuff.com/ : Based on Valve's Portal , Portal: The Flash Version brings it all up in 2d! Portal: The Flash Version includes over 40 challenging, portals thinking levels, and everything's included, in 2d - energy balls, cubes, turrets and even the famous crusher from the trailer. The game also includes a console to mess around with after finishing the game, or just being frustrated by thinking with portals!    Some history: Portal: The Flash Version started as a Flash