I recently had the unique joy of learning that an RPG I'd wished for did, in fact, already exist. (I immediately made a few more wishes, just in case.) The game in question is "Danmaku Yuugi: Flowers," and it's a TRPG based on the "Touhou" series of bullet hell shooter computer games.
I've yet to actually run it, but I like the cut of its jib: The attack patterns and tension mechanics are reasonably clever adaptions of the danmaku attacks and sprite graze mechanics of the computer games, and having skills that represent a character's personality traits and mannerisms rather than her capabilities and areas of competence seems like it'd allow for some creative events and solutions to problems.
However, I happened to read a rumour that the game's developers had received feedback from players after the initial release, and were planning to release a revised version with a number of clarifications and improvements. That sounds rather good, to be honest; The version of the game I have in my hands could do with a few minor tweaks to its organisation and rules content, and getting my hands on the revised edition might save me from having to make house rules to compensate.
Alas, I've been unable to find this revised version anywhere... And it soon occurred to me that perhaps the developers' good intentions never bore fruit. Does the revised-and-clarified version of Danmaku Yuugi: Flowers exist? And if it does, has it been translated into English?