Despite the mess that occurred behind the camera, where Bill Lustig didn't finish the movie and Joel Soisson (producer) had to finish the rest of the film himself, Maniac Cop 3 turned out to be an alright movie. It sure isn't in the same league as the first two movies, it even had to use footage that was filmed for the previous movie to pad it out, but for a third movie in this type of series, it's good enough.
If there is one real positive to bring out of this movie is its long, man on fire stunt at the end of the movie. Our Maniac Cop, Matt Cordell, is involved in a car chase that spans over many minutes in which he is completely engulfed in flames during the chase. I can't imagine how many times they had to light him up and extinguish to get all of that done for the entire scene.
Fans of the series, such as myself, should be happy enough with this sequel but it would be more difficult to please those who aren't.