Portal 2 i amazing game i like the puzzles I like that it gets harder and harder but I like the co-op in the game it's fun doing puzzles with your friend(s) and the teamwork. It was a great game I bought it. This good game to get better at math with the puzzles and gLADoS was a cool enemy and different from the other bosses in my games. I also the humor it's funny. Good game one of my favorite games.