A very good game.

Portal was the Überhaschungshit par excellence. And since part 1 went so well as a bonus, it now delivers a stand-alone retail version as part two.
One should always remain critical if a good game so get donated a second part, because most part can not reach the two first water.
Very different in this case. Portal 2 keeps his promise and maintains excellent. No violence, no shooting orgies as today most common. But a lot of fun.

In return, the game however, requires that the player turns on the brain and that is a good thing. Fewer and fewer games lay still worth it to confront their players with mental acrobatics and provide a straight and simple level course.
Anyone who appreciates this directness and "brains out" function, should stay away from portal prefer.

All others who like to ponder a bit and like puzzle after SP with friends should have immediate access.

The season can also be seen. 10 hours for normal players in the SP mode, additionally spent a few hours in multiplay.

Added bonus: Anyone who buys Portal for PS3, get a code for Steam in order to play the product on his computer WIN or MAC. So you can play solo on the PS3 drive to mischief and fun to dodge friends on the PC for the MP.