This is a game you can pop in and start playing. For the PSP there are more special things in the game. I have the game on many systems and on the PSP offers the most without paying extra. You have a hardcore setting and many other ways to play through the game. If you are able to get some friends together this is an awsome game. This is one of the games which really is not hard, but not always easy. There is not a point in the game which I just got mad and had to set it down. This is one of the games which is just fun to get on and play.