There are a couple of similar sounding games by the looks of it. One for each system (going by GameFAQs).
@BlackPaladin
I only follow translation hacking stuff from a distance, so I can only suggest looking at one of the NES ROM expansion docs for insight. KingMike details a process and I saw that you benefited from his DTE doc.
https://rhdn-archive.romhackplaza.org/?download=[382]NESromexp.txt
Probably a case of substituting older resources for whatever is in vogue. You might be able to get some technical assistance here or elsewhere, but it could also be a good skill for later projects.
