I played through the entire game and I loved it! It's one of the best takes on the theme I've seen yet. I saw in awe as this happy go lucky game slowly turned into a terrifying horror game. I think this could go even further if you develop it more and add more different endings or something! I really really love it! Great job! I hope it makes into into the GMTK video!
PS: I love the music at the end with the organ.