I remember seeing last one in the theater and thinking it was one of the most abysmal pieces of crap I'd ever seen. Then I watched it many years later and almost enjoyed it just as a piece of silly adventure, but then I watched it again probably almost a year ago now and it's fine to play just as background noise silliness, but it's really not very good.
Only things I really liked about that movie were the opening scene w. Hyde, the design for Frankenstein, and Igor ... Kevin J. O'Connor was great as the simpering sadistic toady!