It's a third-person shooter that moves a bit like Lost Planet with fixed aiming. You've got your main weapon, your repair tool, your trusty sledge, and explosive charges. Any of these initial slots can be swapped for whatever you find lying around, and it's a snap to switch between any of them. Jump, crouch, melee ... pretty standard stuff there. Weapons range from assault rifles and shotguns to gleaming saw blades of death.