Nice game, I managed to beat it without too much trouble. I had issues with the 'E' interact key with boxes. Right now, pressing 'E' near a box goes into the push/pull state and you can't jump in that state and you need to press 'E' again to exit that state. Usually, you press 'E' to go into push/pull state and you release 'E' when you want to exit that state, it feels more intuitive this way.