Police Academy 4: Citizens on Patrol (1987)
More than one sequel to Police Academy has managed to earn a 0% on Rotten Tomatoes, but to streamline this list, I decided via a coin toss to put this one on here.
Maybe that’s not fair to this movie, because it does have cameos from a young David Spade and Tony Hawk. Obviously, that’s not even close to enough to redeem a franchise that somehow kept rolling after this installment.