This is a pretty standard first person shooter with a single player option, but the real fun is in online multiplayer action. Like most shooters, you have a variety of weapons and you can be on teams or go solo, depending on the match style. About the only thing that sets this shooter apart from all the others is that one side is human and the other are aliens. It doesn't really matter which side you play because the weapons and controls are all exactly the same. The only difference is how your characters look.
I was actually invited to beta test this game on the PlayStation Network, and this allowed me access to some maps and weapons that were new to this sequel. I played the beta for several weeks, but wasn’t too compelled to buy the game until now that the used copy price has gone down some. Here lately, I’ve found myself in a FPS slump while I am waiting for the new Call of Duty game to come out. I wasn’t too impressed with Killzone 2, and I found this game to be too much like it, only with graphics that aren’t nearly as good and weapons that aren’t that fun to shoot.