Portal...? Is the game Portal just you and you have to make the entrances and exits and stuff. or do you get weapons and kill people?

You don't kill people in this game, but there are robots that shoot you so you must use your portal gun to creatively disable or avoid such hazards. I think of it as a first person puzzle game and I highly recommend it. There is also humor in this game but I wouldn't want to spoil it for you.

http://en.wikipedia.org/wiki/Portal_%28v...
http://www.youtube.com/watch?v=TluRVBhmf...