The Alien Arm Gun is an alien weapon dropped by the Alien. It is a plasma gun that fires in a bursts, each burst shots 5 plasmas, that can be spreaded if the player shoots it moving the mouse for sides. A 5 plasma sequence (one shot) can instantly kill an opponent in multiplayer. It doesn't do self damage, good for close combat not selfdamaging, which Crossbow cannot do because it explodes and do self damage. Each shot makes recoil, which make the weapon move upwards if fired continuously like Rifle.