And I think after I have killed Han San by using the sword, and it may turn bad.

7 seconds sound clip from the Ninja Swords of Death movie soundboard.

You can hear this line at 01:17:38 in the DVD version of the movie.

Quote context

[...]

- The bottom, if there's a scar, that means death. What more, if the scar appears on it, it's the worst. He cannot get away.

- You have no way to choose but to die if the sword has one. That scar is most harmful.

- It's a devil's wish. No one can prevent it. You must beware.

- I think all the scars that you've mentioned do appear on the sword of the enemies whom I have encountered, and that means all of them are to be defeated by their own sword.

- You have described and I know it. I can turn all the bad luck to my foes, and that, I can make use of it to defeat Han.

- And I think after I have killed Han San by using the sword, and it may turn bad.

- If it is true, after the fight, this sword will bear a scar, and I will give it to you, so you'll destroy it. It'll be all right.

- As to that 1,000, I will ask it from your dad.

- You can get it after the fight.

- Give my life back, give my life back. Give my life back, give my life back. Give my life back, give my life back.

[...]