Well apparently it’s a game in unity, not very complicated although I couldn’t understand anything because it was all in Japanese or Korean hehe.
you should use https://github.com/BepInEx/HarmonyX similar to how mage kanade does. and do some kind of unpacking. or decompiled. or maybe something to see the game memory in real time. unfortunately I don’t know anything or very little about how to do that.
but if you investigate in that line, you will surely reach a good port. because I understand that it is how other unity games like onyx or max the elf were modded
check these projects that use these technologies that I tell you and they are integrations that worked
I also noticed that the videos are very short.
I think that if joining all the videos of an enemy in a single long video is going to be easier for you, you can use ffmpeg to join the videos and maybe a little help from chatGpt to give you the ffmpeg commands