Ever heard of this game? Me neither, until a few weeks ago. Blue Wish Resurrection is a free doujin shmup that emulates lots of danmaku/bullet hell games like those from CAVE. If you want a (very) easy taste of the genre, it’s a pretty good gateway drug. I mean that in the most positive sense possible!
Here’s a 1CC run of Heaven, the easiest difficulty. If I can do it, so can you! Get the game here: http://www.vector.co.jp/download/file/winnt/game/fh452584.html