King Kong Escapes (1967)

"The electronic monster Mechani-Kong boldly challenges the ruler of the South Seas, King Kong!!"

An adaptation of the Rankin/Bass cartoon, "The King Kong Show". King Kong is brought in by the evil Dr. Who to dig for Element X in a mine when the robot Mechani-Kong is unable to do the task. This leads to the machine and the real Kong engaging in a tremendous battle atop Tokyo Tower.