Ghost hunt Akumu no sumu ie- ghost hunt Screaming lesson I am so sorry if it is not what you want.... that is all manga and it is horror.
dean and sam winchester forever! <3 I love the show. supernatural. it is horror maybe bloopers are not the right choice, but it's both hilarious and horror
Again, not the suggestion I'm asking for but thank you for trying. Please read the OP before you make a suggestion next time. Thank you very much.
Tasogare X amnesia (This one is mostly fluffy, but it have some of horror scene too) amalgam of distortion (This one has a good story and pretty dark at first) Iwaihime (This one is scary but also a bit mature)