When this game gets going BOY it gets going, it looks good, it sounds even better, and it plays nicely once you get used to the controls (that I think can be improved a bit) I don't remember when was the last time I had so much fun with a platformer game, let alone a one that is also a horror game.
I think maybe a proper tutorial, some lore here and there an some mechanics and you can have a solid game that everyone would love, you already have a solid base here.
Great job! I for one would love a continuation of this game or another one with similar mechanics and style.
Keep up the good work!