Watari, Ninja Boy (1966) (1966)
A rivalry between ancient Ninja clans is revived as two Ninja join forces to avenge the death of one’s sister. Plenty of action with swords, axes, and explosions. Pre-pubescent axe-weilding hero Watari goes through standard shinobi like shit through a goose, but things get a lot dicier when he encounters a bizarre rogues gallery of super-powered villains. The uber-nemesis of the film is played by RYUTARO OTOMO, but Watari will have to wade through a legion of weirdos to get to him.