How to install Murasama ZERO (Katana ZERO mod) 

Because it requires a legitimate copy of Katana Zero in order for the patch to work

Next to the "Apply Patch" button is the settings button. Clicking on that, it will open up a menu and you have to disable the checksum from there. Also be sure to add ".xdelta" at the end of the dialogue file's name.

@@Shin1_42 "An error has occurred: xdelta3: source file too short: XD3_INVALID_INPUT" I don't get it, all files have the correct length according to your video.

Dialogue xdelta file needs to be patched into the Katana ZERO.exe file. And the Other file needs to be patched into the data.win file.

@@danielpinto804 if all else fails, I'll just make another tutorial

@@Shin1_42 I think I figured it out. I downloaded the freaking Katana HERO game. My stupidity aside, by downloading the regular one I think it should work.

Disable checksum. There's a little box you need to un-tick

@@Shin1_42 still doesnt work tho

The "Katana sam.xdelta" file needs to be patched into the data file. Also the dialogue file requires ".xdelta" to be added at the end of the file name and needs to be patched into the exe file itself.

@@Shin1_42 i did all of this

@@SiberianCat228 dang, maybe the gog version doesn't support this

@@user-ol3rq4ku8x aight, will update the description with this info!

@@user-ol3rq4ku8x Oh lmao. But I've also received messages that the gog version can't have the mod installed.

Easiest way is to go to Steam > Katana Zero > right click > properties > installed files > verify integrity of game files

No

They're automatically patched with the .xdelta file. You'll notice it when you're in game. The audio files don't get changed, however.

What does the error say?

@@Shin1_42 “incorrect delta X3”

@@Shin1_42 Im using a cracked version

Dialogue xdelta file needs to be patched into the Katana ZERO.exe file. And the Other file needs to be patched into the data.win file.

If it's cracked, it might not work

V 1.0.5

Should be the same procedure in the vid. Also remember to make a backup just in case

@@Shin1_42 Thank you but please as a way to make you suffer in this not enough suffering life. I suggest you beat MZ with crouch >:)))

@@CardFromSKP I... already did that tho

Did crack work for you?