THE MIRACLE FIGHTERS (1982)

A condemned Manchurian commander escapes by taking the emperor's boy as hostage. 14 years later, the emperor's evil sorcerer finally learns of his whereabouts, now living with a young man who wears the emperor's boy's jade necklace.

SHINOBI (1962-63)

It’s the 16th century and Japan is in chaos. Samurai clans engage each other in battle over who gets to rule the nation, while warlords call upon the ninja to spy on and assassinate their rivals.