Frankenstein Conquers the World (1965)

In 'Frankenstein Conquers the World' (1965), the story follows scientists who create a living heart, which grows into a giant, rampaging humanoid monster after surviving the atomic bombing of Hiroshima. The movie centers around the conflict between Frankenstein's creature and the military forces trying to stop its destructive path. The main characters grapple with the ethical implications of playing god and the consequences of tampering with nature.