When snooping kids at a school science lab discover a corpse and accidentally let it roll away, they need a replacement fast. They find one at the local hospital, but this is no ordinary corpse, this is "Bud the Chud," a cannibalistic humanoid underground dweller.
Yes there was a C.H.U.D. II and it managed to be even cheesier than the original! I think this one was intended to be more comedy than horror, either way the result was vintage 80s cheese at it's stinkiest. Now available on Amazon Instant Video HERE. It's also available on a DVD release but it's out of print and expensive, however it can be found on a Horror Collection DVD set (Waxwork, 976-EVIL 2 Ghoulies III, The Unholy, C.H.U.D. II Chopping Mall, Slaughter High, Class of 1999) available here http://amzn.com/B007N3D8II