Intrusion is a shooter game similar to Metal Slug. The game consists of 5 levels ranging from a snow covered area to a train. The game features some great physics for a platformer, including ragdoll bodies and flexible cables (which you can grab and swing on). Polished graphics and gameplay make this the sort of game we would have killed for back in the SNES/Genesis days. A sequel has been created, which can be purchased on Steam
Five challenging levels, from snowy mountain bases to the tops of moving trains. Use pistols, sub-machine guns, lasers and explosives as you fight your way through an army of soldiers, robots, helicopters, jetpackers, and a handful of epic bosses.