Dunno if this has been discussed elsewhere, But here are some issues I've found with this patch.
In Disc 2, I cannot go through that door, the game hangs and I get a black screen.
Also in Disc 2, a similar result going down that ladder, this time with a garbled screen on the other side.
In both cases I switched to the original version, navigated my way to the next available save point and then switched back to this patch. After that I was able to beat the game no problem. But keep in mind I didn't do everything. I just went from beginning to end as fast I could, so I don't know if there are other issues in other places.
Dunno how this can be related to the translation since there is no text in those areas, but there you go. Hopefully this can be fixed.
I tested this with the Bettle Mednafen and Duckstation cores on RetroArch. I didn't test it on standalone versions or real hardware.
Edit: Forgot to say but the other thing to fix, if possible, is the button names, so you don't get things like: "Switch", "PageUp", "PageDn".
Regards.