This game gives gamers a new look on puzzle solving.
Controls(10/10): The controls are great, the move to have primary fir create on portal and secondary fire make another was a good move.
Sound(10/10): All though the only sounds you here in the game are GLADoS speaking or the occasional music, its still enough. I don't think the game would be as good as it is without GLADoS's comedic announcements, and then drop subtle(and some times obvious) hints that, by the end of the testing, she doesn't want you to have a pulse.
Story(8/10): The story in this game is barely understandable but when you do find hits as to whats going on or what happened(before your testing and why no one is there) it makes the game worth wanting more at the end. Luckily the this isn't all we get, because soon we will be graced with Portal 2.
Multiplayer(N/A):There is no multiplayer as of now, but they are trying to figure out how they might get it to work. I'm am not going to judge something that isn't there yet.
Replayibility(9/10): It is fun to go back and try to solve the levels a different way, and the challenge levels add to the replayibility.
Recommended: Yes