I'm glad everyone's enjoying this game, it was actually me and my brother's purchase once we learned it was just sitting in a game shop in Japan.
Anyway, I just wanted to point out that someone else I know, Dodo•Geist on the Gaming Alexandria Discord, is doing their own translation hack, although I'm not sure how active it is. The person who helped hack the game so you can go past the third world, MasterF0x, is also working on a disassembly of it. I figured best to share this before there's too much overlap since I don't know how many people are tackling this. I'm certainly glad it's getting so much attention!
BMF54123 also has given his own attempt at the title screen and asked I post here for any feedback. I think 4lorn also has done a great job.