are any of the mod enemies translated or can we actually meet them in the game or are they all only in japanese and only accessible in that gallery room place? Also I get this bug from the kunoichi only all the other mods I was able to get to appear in the gallery room spot and fight the enemy there but the kunoichi causes this error in the fight right after answering her question.
I did a few of the mods in the base game but they don't all work with the expansion quite right (notably, the Ayumu prologue mod breaks and was redone for the expansion, but I didn't go back and redo the translation, so that English mod only works on the original version). I also did the official Pixy and Phantom insert mods, the original Pixie mod, and an Undine mod that at the time I thought was an official one (it's not), and which I
think work with the expansion, as well as Rybecia's extremely complex Mermaid "Deep Dive" mod, which to be honest I've never tested running with the expanded game. I'll stick some attachments below.
As for the Kunoichi mod, interesting you bring that up, as that's actually one I've done a little preliminary work on. It breaks in English due to some misplaced commas in the javascript, for some reason (which is weird, since translating to English shouldn't have any notable effect on that aspect). I only recently figured that out, and I've been meaning to go back and finally finish it, but between mucking about with another project, and just being kind of busy in general, I haven't had the opportunity (my real job slows down for me a bunch for a couple weeks after tomorrow though, so maybe Soon™?).
To use the mods attached, just copy any of them you want from the zip file into the game's www/mod folder. For the Phantom Insert mod, you will also need the image set created for that mod. I had to divide those into two sets to attach, unzip both sets into the www/img/pictures folder to use that one.