Fires mechanical bugs that home onto the target and explode.
Swarm Gun is a special weapon that has currently the highest damage statistic amongst all the multiple projectiled homing weapons with stun effect, the Hand of Kisin and the Defiler included. Currently only obtainable by winning in the Gold Bullet Chest Lottery. Though in a glitch it can be bought from the shop for 350 Sheriff Stars (this is now patched), making it at par with The Inevitable End in cost. It fires mechanical bugs that home in on enemies and explode on contact. They are simply called Bugs.