Fusion of a human with a stink bug. Frequently mistaken for a variety of Plazm, this monster secretes and controls a thick cocoon of its own semi-living gelatinous waste, which smells unbelievably foul and serves as the creature's outer body. Omnivorous, it sucks plants and animals into its rancid casing and injects them with digestive enzymes from its razor-sharp proboscis. It may keep prey alive for days or even weeks in a bubble of its dense jelly, feeding periodically.

In the wilderness, multiple Bugpie may combine their outer bodies to become a greater colonial organism.