A bioconstruct engineered by the Mumblegog as an advanced sentry, the Gullywunk moves poorly on its single leg but may stand in place for decades, looming like an antenna in the foggy Plagueman territories. It has the unique ability to guide bacteria psychokinetically, controlling its disease-ridden breath like a gaseous pseudopod or even drawing infections out from sickly allies.

   While Mumblegog are born with random 2-4 digit serial numbers, Gullywunk bear meaningless but always unique barcodes.