It’s got to be a problem with the English patching process, because I have the same issue with Chameleon Twist (J) English patched ROM. The USA version works fine, but the J version is the definitive version of the game in a few subtle ways. I was having this problem on the previous version of Not64 so it’s not a new problem either.So I'm experimenting with a few translation romhacks and several are displaying strange text in the Not64 menu/loading screen. For example, in Bomberman 64 Arcade Edition (the JPN-exclusive one), in the left pane the internal romname displays correctly, but the next line of text is arbitrary nonsense:
Is it a bad romhack or a bad dump, is this something I can (hex) fix in the header? NHAJ is the correct official serial code for the unmodified game.
The game plays mostly fine, but saving is broken ("Failed to save game" error following pausing Not64, with autosave enabled). I suspect Not64 uses that official serial code to create save files so the extra nonsense characters are the source of the issue.
I def suspect it’s got to do with the name and could be fixed by hex editing the rom, but I have no idea how to proceed with that process. But really I bet the fix is simple. If I experiment with it and have any success, I’ll try to reply to this thread or message you, but it’s not on my priority list at the moment because I need to get a new job to afford rent lol but it’s something I really want fixed so i might get around to it in a couple months!