Whoa! Thank-you for all the info! :D Just started reading it and it's very interesting! (and you're right about the confusing-ness, but HEY it's grabbed my attention XD) Even from just this first chapter it really surprises me that it isn't more widely distributed. But I'm willing to bet it's the usual mess of legal hub-bub that keeps things over seas.
And if you ever happen to get the urge to suddenly become irritatingly addicted to being shot at by magical girls in sparklie patterns to the beat of highly catchy music, then here's a link to all the Touhou Project games: here

They were all made by a a guy who calls himself ZUN and as you can guess they aren't mainstream in the least. XD But he programmed the games, composed the music, and drew all the art(for most of the games, which is why it's a little shakey in this area but in later games he hired someone to draw the artwork) all by himself so it's pretty amazing. But there are BUCKETS of fan stuff for it all!
If you do decide to try one I'd start with Embodiment of Scarlet Devil(the one Flandre is from) since the first five need an emulator to run, plus EoSD is one of most popular as well as hard as HELL to beat.... Or hey, if you want a quick example, here's the Extra Stage fight with Flandre: There's a reason this type of fight is called Bullet Hell

There, now we've both rambled. XD