Rat Pfink A Boo Boo (1966)
With practically no budget, heroes wearing pajamas, along with a dash of rock and roll, writer/ director Ray Dennis Steckler creates one of the oddest entries in the superhero film genre.
What begins as an attempted serious crime drama, the film dramatically does a complete turnaround half way in and becomes a silly superhero romp. A guy in a gorilla costume, a damsel in distress, a musical montage at the beach, backyard fights and the filmmakers crashing a town parade.
Steckler was said to have had a change of heart with his original story and rather than have the unwanted footage go to waste it was decided to just use it anyway. The fact the title itself was a typo should be a sign this is going to be one crazy ride.