Crime Fighters was released on April 26, 1989 in Japan as a dedicated upright. It was then released as a 4-Player conversion kit outside Japan as "Crime Fighters [4-Player Conversion Kit]
Some bosses' character design in this game seem to have been inspired by popular horror movies, this seems true for three bosses in particular :
Stage 2 Boss : A parody of Jason Voorhees from 'Friday the 13th movie' series.
Stage 4 Boss : A distant parody of Leatherface from 'Texas Chainsaw Massacre' movie series.
Stage 5 Boss : A parody of Freddy Krueger from 'A Nightmare on Elm Street' movie series.
The dying pose that the Stage 7 boss does seems to have been inspired by the movie poster from the 1986 film Platoon.
King Records released a limited-edition soundtrack album for this game (Konami Game Music Collection Vol.2 - KICA-1016) on August 21, 1990.