1. The Blood. Glorious fountains of bright red blood. Cut off an arm or other appendage? Jettison of blood. Poke somebody with the tip of a sword? Jettison of blood. It was truly a thing of beauty.
2. The groans, grunts, moans and screams that were, obviously, dubbed over for sound purposes. I watched a copy with subtitles, and indeed, I have no idea if they have ever dubbed this movie in the English language. I don't care either way. I simply love how the sound doesn't always quite match up to the lips. And, as mentioned, the melodramatic sounds of pain/pleasure/exasperation.
3. I'm a huge fan of Quentin Tarantino. You can tell that QT really liked, and borrowed, heavily from this movie in the making of Kill Bill. The camera angles, the fight scenes, the aforementioned geysers of blood, and one blatantly obvious song(which I now know the words to, having watched Lady Snowblood-and what a glorious song it is) The song is, I believe, called "The Flower of Carnage" by Meiko Kaji.