I finished the singleplayer 2 times on pc. Havnt tried co-op yet.. But i love the game.

I played the game straight through, couldnt stop myself.. so much fun..

If you liked the first Portal, you will love this one.. it has a good story and about 7hours of pure puzzel thinking. Some stages where way to easy and some took me a while to figure out. I also loved the twists of the game. To all of you that have played the game i only say "Im in space!" It was great fun.. Thinking of buying the game for ps3 aswell..