Spectacularly done.
Excellent, excellent job. Was pleasently surprised to see this show up on another site that I frequent, legitly posted by you, and have been playing it there while waiting for it here.
Review-y time: Touhou nuts, strap in and enjoy. Bullet hell at it's finest, with more bullets than ever (AND THE BULLETS SHOOT BULLETS SOMETIMES), with a 1 pixel hitbox being necessary, lest you be raped all the time.