The Hill Valley Maniac is one of the first 3 expansions packs for Code 3. It includes a new officer, new chief and new scenario to play.

The Hill Valley Maniac has just struck our already crime filled town! He is like nothing the police force has ever faced before, using super advanced technology as a weapon to cause a reign of terror! There's no way he... could be from the future? A new type of hero is going to be needed to take the maniac down!!! We better call - Chrono Cop!