I really like the art and I'm impressed, it would take me the full seven days just to make all that pixel art lol! I think you did a really good job at making the game and it actually scared me when I went from the tutorial to the actual game. The sounds are really creepy and the core mechanics were implemented in a really fun way. It's a simple game but a very good one!
Sort of random but I kinda thought of making a game like what you did but I changed my mind because I wanted to focus on a 2D game. You on the other hand took the problem and made a mainly 3D idea into a great 2D game. However, truly if we had the time and/or resources and abilities to make a 3D game, I think your idea could have been taken into a full effect and been very immersive.
Great job and I hope that you'll continue to grow and learn your game development skills!