RanchoTuVu’s review published on Letterboxd:
William Lustig seems to have combined his classic "Maniac" from 1980 with Michael Verhoeven's "Robocop" from 1987 to have created 1988's "Maniac Cop". The main ingredients were better than the final product, IMO. This film has too much plot for its own good which interferes with the simple concept of a maniac cop. It was heading in the right direction with the woman blasting the hapless police officer because she was sure he was the berserk cop, which is not to say it went in the wrong direction, but detoured away from that promising one of terrified citizenry defending themselves from police who wish to do the exact opposite of "protect and serve". Larry Cohen's story promises something like that but seems to focus the film on revenge for some past injustice that reaches the highest levels of NYC government which suggests the cop isn't even necessarily a maniac in the first place in the sense that Joe Spinell was in the 1980 film. He's more like a pissed off Michael Myers. I have to admit once MC got to the police station things picked up for me.