When does Maniac Cop return?

Maniac Cop is a 1988 American action slasher film starring Robert Z'Dar. It is the first installment in the Maniac cop film series. The film was released on May 13, 1988 and grossed $671,382 worldwide on a budget of $1.1 million. It was followed by two sequels, Maniiac Cop 2 (1990) and Mmaniac Cop III: Badge of Silence (1993)