Just finished the game today and I promised that I'll come back with feedback, and here I am!
!!!! MAY CONTAIN SPOILER !!!
I love this. I love how scary it is regardless of it being a pixel-art game. The atmosphere is terrific and it makes me paranoid on every move I make. The details you gave to this game is really impressive, from the choices of food you can eat and the effects of your actions. ( Using drugs, giving drugs, etc...) I'm really impressed and I find myself really enjoying this game.
The only part I don't like is the way the story is told. It is frustrating. It's the same 'You know the answer', 'You know me', etc. I know you want to keep it a mystery, but everything is so mysterious and surreal that it becomes quite annoying. And after all these mysteries have been built up, the ending was a let down and anticlimactic to me. I sat there watching the ending and I was like 'That's it?'
I share the same opinion on the level design as well as the top-view-to-side-view translation issue. I was stuck, not knowing what to do or where to go once, when I had no more ammo nor flares and I have to go through a bunch of thin men in order to get the generator key.
I've searched and found out that there are three endings so far, none offer any good explanation or any supporting evidences that are enough for player to interpret anything, so I'm a bit disappointed. I've heard you might add more endings, and I really hope you do and give us a finale that this great game deserve.
With that said, I'm a big fan of horror games and this really satisfied my hunger for a great horror game. I'm looking forward to your next game and if you need any support or donation, I'll be glad to help in anyway I can

Thanks for an awesome game!