Just plain fun. A shooter that brings me back to the days of .... OPERATION .... WOLF.
We tried this game without the light gun and a lot of success. It also includes other things that just shooting. Such as bomb disarming, Sniping Mode, Mine disengaging, hand to hand, and knife combat.
Honestly if you like arcade shooters .. at the very least rent this game. I doubt you will be disappointed. And as always these types of games are much more fun with a second player.
And just remember for the coolest arcade shooter move ever .. in the jungle level search the center cabin. I only wish John Matrix pulled that maneuver in commando.