The game's not fun when all I have to do is run and avoid. There's no hiding mechanics in game and Zyroidkarbie is a ghost without a sprite, which doesn't make me fear what I have to run from. Personally, I would like it to have an appearance of fog and bloodshot eyes of different sizes. (Yukari from Touhou) It's not scary without a form and I'm very disappointed to see it has no form to intimidate me with.
The game has an unoriginal concept of gameplay (lacking puzzles), and resembles a collect and go game instead. (a notable game example being Slendytubbies 2D) But, I do like the psychological horror elements, like bleeding from the eyes with a scream, which startled me, and the black screen which adds to the dread. As well as the fact that Zyroidkarbie can be heard from god who knows where and whether or not he's coming for your booty.
The story is certainly something, but I felt in the description you already spoilt the story by saying that Amy was an artificial human and that the penultimate enemy is Zyroidkarbie. Sure, learning that Zyroidkarbie is a amalgamation of souls really did add to the plot, but I think it would be better shrouded in mystery first. Furthermore, if you wrote the story from Amy's point of view, as opposed to describing her plight, it would be much better and you'd feel like you were her.
Example of writing from Amy's point of view: "I never knew who I truly was, other than the fact I was called Amy. The walls and floors are blank, covered in dust and grime, and the only thing that keeps me alive is ironically the one that wants me dead."
I would like to be your proofreader (English corrections) and co-writer if possible. This game surely has potential, and I love and hate it at the same time.
And finally, Zyroidkarbie will eat your balls.