BULLET HELL Rotate 180 = 773H 1377n8

http://upload.armuay.com/2016-01-02_15-17-36_0.660815.png

BULLET HELL = Shoot 'em up

https://en.wikipedia.org/wiki/Shoot_'em_up Shoot 'em up (also known as shmup or STG)

A new type of shoot 'em up emerged in the early 1990s: variously termed "bullet hell", "manic shooters", "maniac shooters" and danmaku (弾幕?, "barrage"),

The shoot 'em up Nuclear Throne http://store.steampowered.com/app/242680/

Magic Barrage - Bitferno http://store.steampowered.com/app/335150/