Pretty good small game! Only thing to fix is those moments where you are trapped under a box and another one is directly in front of you. I think some good soundtrack will also add a lot to the experience.
I would advise you to take a look at a program called Bosca Ceoil. It's pretty simple to use to create some nice music. It's much better when you can do your own music than searching for something that matches your game (that can be really hard sometimes).