I just gave this game a try, and I'm really amazed. Despite being in early development, there is a great deal of entertainment value in the game demo by way of its concept. All the pros that I found with the game have actually already been well described by the fellow below me. I too was impressed by the use of inflated enemies, and the compatible design of the environments. (I noticed the free standing pillars in the second level "conveniently arranged like bowling pins", before a flight of steps, and a fox at the top to send rolling towards them.) Of course, it has nothing to do with level progression, but I'm honestly charmed and amused by the creative and light-hearted implementation.
Nevertheless, I'm encouraged to share my thoughts because I think this game concept and project is worthy of further development, for its fun concept and great potential. Really great game no matter what. It plays great and and I haven't had any problems. I thank you for what this game is so far, and hope to see it grow.