 If you liked
Ninja Bugei-chou
|
 ...then you might like
Sabu to Ichi Torimono Hikae
|
Both are historically significant in the history of anime.
Both are among the earliest examples of anime produced for an adult audience.
Both are very mature, for late-60s anime, showing much more violence, sex, nudity, and mature themes than other anime of the period.
Both are very low budget, and so rely on experimental film-making techniques, to tell the story.