These enemies launch weak poison attacks that travel a good distance. Piercing weapons, such as the Gunner's Laser Beam Gun 4 and Sniper's Fire Shot 4 work wonders against them, as they can damage the whole swarm of them. Otherwise, Freeze type weapons work best against them. In addition, it is also recommended to turn off Auto Move since the poison cloud barely reaches characters at maximum range, and staying in one position may cause the cloud to not hit the target at all. Although they are weak, they appear in a huge mob of 80 in the 1st screen, but only appear on that screen, as well.