Quidnunc:
Interesting idea. It almost seems better suited to memorizing kanji than hiragana. Add furigana and you can learn a few things at once while also having the potential for making it look beautiful (the furigana/hiragana characters swirling about the kanji)?
Well I am an absolute beginner and so far I'm about half way through memorising the Hiragana. If you think its better to aim this at learning kanji too then that could be done but the need for a language expert to be involved in this will rise considerably. I can still provide plot / characters / locations etc of course.
Horus:
I'd definitely be interested in helping develop this!
Ore wa sukoshi Nihongo dekimasu. (I speak a little Japanese).
Yeah, but reading and writing it is an entirely different affair. I spent several years as a child on the island of Okinawa (or Uchinaa, as its natives call it). I sure wish now that I'd taken the time to learn the kana, so this idea calls out to me.
I have stared out on Tofugu and one of the things they say there is to concentrate on reading rather than writing for speedier learning. I don't know that is right or wrong but I think players themselves would probably be translating into English anyway. I have run through some speaking videos too (Japanese Ammo on YouTube seems pretty good as Misa has a really clear voice with little accent when speaking English)
If you'd like to help, rmail me and we can discuss it.
I'm not expecting this to be a super efficient way of learning Japanese but I do see it as a fun accessory to learning and perhaps a good source of motivation to keep learning.