I'm probably drawing more influences from Cruelty Squad than Hotline Miami (other than the art style) lol, but glad to hear there's other (canon!) stuff that tries a similar mix. If I ever did something truly original I would probably have a mental breakdown
Hiffu is official funny thing, the gist is it's basically a near future outside world where everythings just been getting worse as it were. https://en.touhouwiki.net/wiki/Maribel_Hearn https://en.touhouwiki.net/wiki/Renko_Usami