I also watch horror a lot and enjoy it but I have a really, really low limit... I have some bad psychological issues that I struggle with, so for my own mental health, I have to keep the really disturbing stuff to a minimum.
It's a good game and fun when your mind is in the right state to withstand watching all the murder. haha It even comes with references to actual anime and other games, Castlevania being one example. Most of the others though come through as outfits with special powers when at school. There are quite a few and I think one of the most popular is One Punch Man. You get the main character's outfit as a cosplay and you get to run around the school using their abilities to kill the other students. lol
Oh, no. It's sort of horrific/disturbing instead. The game that I played the parody on was called Yandere Simulator. It's a horror-romance PC game some guy on the internet is developing for Xbox/PC access. You play as an anime high school girl who's obviously been raised in a psychotic family where her mother has apparently taught her that it's okay to murder other women interested in your man. So the objective for most of the game is to eliminate/assassinate every girl who shows interest in your senpai, whom you have a massive crush on, all without getting caught- not by police, not by teachers, not by other students and especially not by senpai. Getting caught by him is an automatic game over. The game features a day/night sequence where during the day, you are at school and have to attend classes to maximize your skills while murdering in free time. At night, if you are not caught, you go home and you have several options: Sleep (which takes you to the next day), Look At Senpai Collection (where your character will look at a collection of creepy stuff she took that belonged to senpai), Change Panties (the panties you choose feature certain boosters), Torture Victim (if you have captured a fellow student, you tie them up to a chair in your basement and you can torture them until they break and become your slave) and Play Video Game (where Yandere-chan, your character, puts on and plays a short Castlevania themed game. You get to play the game as her.).
It's not hard to see why I had to stop playing this game for a while.