Night of the Living Dead (1968) and C.H.U.D. (1984) are two socially relevant horror films, but their sequels (or, in case of Night, their unofficial spin-off) play for laughs. Return of the Living Dead (1987) plops Reaganite punk rockers against zombies, and, at the end of its 77-minute run time, has the government nuke an American city to prevent more zombies. It doesn't outstay its welcome and respects its source.
Now let's talk C.H.U.D.s. C.H.U.D. positions the New York City homeless as Cannibalistic Humaniod Ungerground Dwellers. (I may not have seen the movie but I damn know what the acronym stands for.) Its sequel replaces politics with beer commercial-quality comedy. "Meet Bud, party animal of the living dead," teases the tagline, and sure enough the titled hero of C.H.U.D. 2: Bud the Chud (1989) is not a cannibal, humaniod, nor is he an underground dweller. He does like to party. He's an oversize white guy, basically a zombified Koogler from Community, inflected with the "C.H.U.D. virus," which makes him twitch and wander into rooms. He's escorted throughout the film by two guys, like they do in Weekend at Bernie's (1989). C.H.U.D. 2 reminded me of Return of the Living Dead, so I wasn't so surprised, when, during our podcast, Carl mentioned that this script was meant to be a sequel to Return. That explains the shift in tone. I find it ironic, too, because the actual sequels to Return shift the tone to gothic Pinhead-levels of self-mutilation. Or at least, that's what the trailers show me. May I never watch a horror movie sequel again.