Worth playing because it's histerically horrible.
The first person shooting action could actually be good, but with terrible control over your character and aiming, that kind of limits you. There are tons of enemies, but that's because they keep popping up behind you and in front of you, even though you clear out an entire section. The FPS parts are basically just a run-and-gun, because if you try to be tactical and take cover, enemies just keep spawning, so it's pointless to stay in one spot. The other aspect of gameplay is the fighting elements. Yes, this FPS game also has a Tekken style fighting system built in, and boy is it terrible. There is left punch, right punch, kick, and block. And your "super combos" consist of consecutive left and right punches. Lame.
Graphics:
Like a high quality PS1 game...maybe. The character models are bad, the levels designs are bad, the guns look like crap, the explosions are just orange blurs....you get where I'm going.
Sound:
Really bad voice acting, stupid dialogue, mundayne sound effects, and terrible music.
Replay:
HAHAHAHAHAHAHAHA!!! THis game is worth playing through only once...maybe.
Overall:
It's a hilarious game to say you have in your collection. And even though all the ragging, it's worth playing just to shoot, then beat the hell out of Osama Bin Laden.