Description: Includes over 40 challenging, portals thinking levels, and everything's included, in 2d - energy balls, cubes, turrets and even the famous crusher

Instructions: Left mouse button - launch a portal. A W D - movement Q - launch a blue portal. E - launch a yellow portal. R - Close both portals. F - pick up an object. ~ - open up console (enable through the options) O - quick quality adjust. Esc/P - pause game.