A really good game, but i think it has small problems that you could improve for your next jam:
The controls are not intuitive, normally when using a mouse i expected wasd controls but instead you put the arrow keys, after using for a while i was comfortable with them, but maybe just a tutorial would improve a lot.
The puzzles are really easy, which is not a problem, but this idea has so much potential and just one harder level in the end maybe optional would be so good for me.
But as i said just small problems, overall is a really good entry! :) (Sorry for my bad english)