Monster in the Closet!
Never saw this one, but it sure sounds promising. Monster in the Closet is a Troma movie from ’86, and while I’m generally apprehensive about Troma movies (not throwing shade; they just aren’t my style), this flick looks like a winner. I mean, if my Google Image Search was any indication, it features a monster that looks like a man-sized Rancor.
Since it’s a Troma film, you can expect it to be more than a little campy. Enjoy!
(Also, kudos to this vid for having the least interesting thumbnail in YouTube history.)