I think the game has a pretty good concept overall and uses the limitation in an interesting way narratively. For the beginning narrative, it would be nice for there to be some sort of image or picture that goes along with it to help see it visually. Although I don't know how good at art you are or how hard it was to make the stuff you already put into the game. For the puzzles on the doors, I think it would be more interesting if there was a variety of puzzles so that you're not just doing 8 piece swapping puzzles. Since these puzzles become quite easy after you learn the method of completing them. Overall though I think it's a very nice and unique puzzle game.