"We will Sludge YOU before you can Sludge US!" The Sludge-Viper never runs out of ammo, since his sludge gun has a built in decomposition accelerator which can create toxic sludge out of whatever is at hand, and propel it at lethal velocities with the noxious methane gases given off by the decomposition process. The sludge gun features a laser range finder, third generation image intensifier optics, and a phased magnetic array sludge guidance system.