Undercover Cops is notable for its detailed backgrounds and grimy futuristic setting. For its time, it was relatively gory, featuring crow-pecked skeletons in the midst of its urban wastelands and forcing players to lose a life by being crushed by a garbage compactor during the first boss battle. While the gameplay is inspired by Final Fight, some of the enemies are unique. Besides the usual human thugs, players fight strange mole creatures and mutants with jet packs and blades for hands. Players can never use enemy weapons, but the stages contain objects that can be picked up and used instead such as burning oil drums, steel girders, long concrete columns that shatter on impact, boxes of hand grenades and fish. The characters eat mice, frogs, birds and snails to restore their health.