Here's an 8-minute clip from the English-subtitled version of "Zatoichi and the Doomed Man," featuring Shintaro Katsu as the blind traveling swordsman/gambler/masseur.
Although this classic scene has one of the highest body counts of the entire Zatoichi series, this film, released in 1965, isn't nearly as bloody or gory as later films (to say nothing of today's fare).
Here's a great scene from "Zatoichi the Fugitive." Note the unconventional way Zatoichi holds his swords. This technique—sakate-giri, or "upside-down cut"—was one of his trademarks. I also like the atmospheric '60s music in this film. It's cheesy, but then that's part of its charm.