Fun puzzle game and great interpretation of the theme. I think the difficulty curve was just about right, which is something that is not easy to achieve in a puzzle game, especially one made in 72 hours!
I'm glad restart was an option but it definitely should have been mentioned in-game :) I think little UI popups could have been useful, like a little "press E" popup when you were over the cross squares. A really nice entry overall though, good job!