Ray Dennis Steckler tried to make a straight crime drama. After shooting about 40 minutes of footage, he decided the film was simply not working. He couldn't afford to scrap the footage, and portions of the film were unintentionally funny, so he had two characters go into a room, then burst forth in makeshift costumes as Rat Pfink and Boo Boo. He padded out the rest of the film with chase scenes, fight scenes, and even an encounter with a gorilla. He shot footage of the duo appearing in a real-life parade, as if it were being held in their honor. When the main title was being animated, the "n" and "d" were accidentally left out, so the title appears as "Rat Pfink a Boo Boo."