Supersonic Man (1979)

aka: El Supersonico

An alien, Supersonic Man (Jose Luis Ayestaran) is sent to Earth to thwart the plans of evil men, led by mad scientist Cameron Mitchell, who would destroy the galaxy itself with their weapons. Only his superpowers, which include flight, bulletproof skin and the ability to turn guns into bananas, can save Earth from destruction. Also stars Antonio Cantafora and Cameron Mitchell.