That Guy with 1 Arm

Three limbs ripped off, you must survive! Drag yourself through the limitless landscape, fight off horribly mutated monsters and survive at all costs.

Rotate your right arm (aka your only limb left) and drag yourself with your hand. When a mutated monster approach, switch to revolver and shoot - until it's no longer moving. Once you run out of ammo, drag yourself around until you find an arsenal. Upgrade your hero's specs and survive. Waves after waves, how long you can survive in this spooky, scary area?