Brilliant FPS!!!
And if you like FPSs this might be a perfect game for you!
There's lots of action in this game! And lots of weapons as well. And the graphics are great! A thing which is a little bit col, is that the levels are randomly generated so that the rooms are different every time you play it. This gives it a good replay value :D It also has multiplayer for up to four players, but I don't really know if it is any good since I've never tried it =/ (only because no one I know owns both a PSP and Coded Arms). But I do know that the single player game is very fun ;P Oh, and of course, it has a very interesting story, too! :D
I really recommend this game if you're a fan of action and FPSs!
Of course, this is only my opinion on the game, so if you aren't sure about if you should buy it, at least go rent it! ;)