Absurdly Extra Mode is an unlockable difficulty for Extra that you unlock after 1cc'ing Unreal Mode, the hardest difficulty in the game.
Evanescent Existence is the first game in JynX's Len'en Series, with two games free to download and the third being released this Comiket.
Absurdly Extra is a bit silly.
If you don't kill the first few fairies they will shoot so many bullets that the game actually can't handle it.
Bombing the final nonspell gives you a ridiculous amount of points. Use this to your advantage to get the 30 and 50 Million extends.
Game Download: http://www.vector.co.jp/soft/winnt/game/se504875.html.
For translations on the plot and dialogue you can go here:
http://en.touhouwiki.net/wiki/Evanescent_Existence
Creator's Blog
http://mugenri.blog.shinobi.jp/