Portal: The Flash Version is a 2D free browser version of Valve's revolutionary cult puzzle game.
Portal: The Flash Version begins with you waking up in some kind of test center, and you've been given a special tool that can create portals. Specifically, it creates one blue and one yellow portal. Enter one and you'll exit through the other. Fire a portal at the ceiling and the floor and you'll find yourself popping out of the ceiling.
This game mechanic allows for all sorts of brain twisting fun in the original, and much of that has been brought over in Portal: The Flash Version. It's occasionally frustrating in 2D, and the menacing voice of GLaDOS (the computer who's testing you in the original), is missing.
Portal: The Flash Version is a fun timewaster, but it's unfortunately not as cool or atmospheric as the 3D version.