Based off of Valve's upcoming "Portal" game. This is a flash version of it. See if you can make it to the exit by making portals through the walls to pass the obstacles.
Portal is a fun and addictive free online game. Play Portal online and enjoy it and other free online puzzle games like Portal, in One Million Games. And remember, in this site, you don't need to register in order to play amazing addictive online games. You simply have to enter here and enjoy this and more amazing puzzle free online games.