The game includes over 40 challenging, portals thinking levels, which features almost every feature the real game does, in 2d - energy balls, cubes, turrets and even the famous crusher from the trailer.

Controls:

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.