Lone Wolf and Cub: Baby Cart in Peril (1972)

Lone wolf and cub face off against a tattooed s lady assassin!,...............................,..........

Lady katana assassin seeks vengeance against evil clan but they hire lone wolf to stop her!..
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Both have samurai vs. Ninjas! Both Lone Wolf and Azumi fight against a whole army of Samurai! Do they win?

Both deal with Samurai versus Ninjas! Children are raised to be demon wearing mask ninjas, but less then half survive the brutal training!