You should really add some screenshots to the gamejam page. I had no idea what to expect. The final puzzle took me a while. I got the key and kind of wandered in a circle for a bit. It was definitely hard to navigate not being able to see sideways. I didn't know what C was for until I got to a spot where I was stuck because of the moving platforms made it so that it wasn't possible for me to get through a doorway. I enjoyed the game overall. It was a very neat puzzle game :)