The films are quite good & the subtitles are excellent but for over the top Samurai violence you can't beat the Lone Wolf & Cub film series. Also check out the 2 Lady Snowblood films. The later 70's Zatoichi films get a bit bloody but nothing in comparison to the Lone Wolf films.
Not on DVD but very over the top & politically incorrect is the Razor film series.
If your looking for a really bad/stupid Kung Fu movie, might I suggest The Crippled Masters.
" This is an old-school Kung Fu movie at its most glorious. A man with no arms. A man with no legs. An undercover police officer. An evil man with a mysterious clanking back. A wise old man in a basket. Put it all together, and you got the number one must-see Kung Fu film ever."
Review from one of the greatest reviewers of our time: Brian Kissinger
Don't know the name of it, but there is a martiaL arts film where some old evil guy gets an axe in his back and continues fighting and the funniest poart is that he flys around.
Don't know if it's the Lone Cub film, but there is a martial arts film where a man with a baby in a baby carriage would push the baby carriage towards his enemies and knives and swordes would come out and cut limbs off.