Substitution
Deacon Blues
I'm pretty sure there are people why enjoy it, but sadly most of its fanbase devolves into shipping and waifu wars. It's a shame too, because there are a lot of things it does right.I'm sure a lot of people play it for the gameplay. There's a lot of people who've uploaded their no damage maniac runs, which means they're obviously dedicated to that certain aspect pretty highly. Plus the meta is pretty developed as I've seen strategy guides(closest thing I can call them) for how to git gud at the game, and it's fairly comprehensive.
But with that said, it's undeniable that a large portion of the fanbase is there for the cute anime girls(and the music!).