Nice! I loved the premise of the game (using logic to navigate through each room). I love the unexpected paths, I felt that the game is full of personality! I really like the ending with the number 5 and the number 9, but I there wasn't a path out to exit so I wasn't sure if I actually hit the ending in that route.
Totally not in scope of the game, but a narrator like in Thomas was Alone or Portal could really help tie the whole thing together. I managed to find some of the endings, but I wasn't sure where all of them were.