I ran into quite a bit of bugs with collision issues, pieces would fall through the floor and once a door even pushed me out of bounds. Eventually I did complete the game and with bugs aside I enjoyed the game a lot. Looks really good and has really fun puzzles. Great job.
I also took me a while to realize I could leave the box, however I kind of like that. It made the moment of realization feel special and made the game really memorable. I enjoyed the game a lot, great work.