Board Thread:Off Topic/@comment-24993958-20160429075004/@comment-27425734-20160509153510

Touhou is a video game. It's a Japanese bullet hell shooter video game. Here's a video of some gameplay from it: https://m.youtube.com/watch?v=7ySvfqN4gto This boss fight seems similar to the one in the gif Maki put in his/her post.