@folly Thanks for chiming in, I'll look into that!
Yeah from what I've seen so far, a lot of the menus still have enough English to be playable, with the worst of it generally being not being able to read/understand the characters for games where you'd have to make up a name for yourself. With an RPG like Esper Dream however, the language barrier was definitely going to be an issue (but fortunately a translated ROM exists). Just don't want to have it inconvenience me later on.
Anyway, hopefully I can get someone who can answer some of these other questions...!!