I know this is for Ludum Dare 47, but after the jam is over, you might want to consider switching some controls around; in Chrome F1 opens the help menu and I couldn't get the ALT + ENTER fullscreen to work. Itch.io DOES have a built in fullscreen button you can add in, though. Other than that, fun game!
Oops, thanks for the feedback! to be completely honest, the WebGL build was not super planned... we did plan the Windows one but the WebGL was like a shot in the dark. And as it ended working we uploaded it. But you are totally right, after Ludum I will probably adjust some things and change the controls. Thanks for your time!!