I liked it. Very neat, stylized visuals. Lack of sounds is kinda bummer though. I thought I will discover secret ending apart from the main one, but after getting an unsettling key, i didn't know what else I could do :C
Sorry about that. I meant to make it that you open a door with the unsettling key but forgot I added the "cheat" I added to open the last door so I could test the animation. If you got the key and saw the ending then you could say you won.