My only complaint with Aka Manto is that it doesn't feature Controller support.
Yes, Aka Manto will always be compared to Nun Massacre. While I do prefer Nun Massacre over Aka Manto personally, I do give Chilla's Art a lot of credit for putting their take on the "Creepy Character wants to kill me Game" out there.
While this may not be for everyone, it certainly is good. And who doesn't love a Japanese Urban Legend turned into Videogame form??