I like the idea of using wind-up toys to fit the theme and also navigating the labyrinth is quite fun.
In the beginning I had some problem understanding how to wind up the toy since there is no informations about the controls so I'd implement some tutorials.
I had some issues understanding what the ball is for: I thought it was a collectibles that rewinded the toy (that would be resonant with the theme) but when I got it nothing happened or at least I didn't notice.
One last thing you should look into: when the wind up bar reaches zero nothing happened to me , no game over or messages.
Anyway really nice idea and level design. Keep working hard! ^^/