One night, a paper box looked up the sky and wished: "I wish I could move so that I can travel around the world". Suddenly, a beautiful fairy appeared and made his dream come true: she sticked a spring under his bottom. Now he can move, BUT... there comes another problem: he cannot stop jumping! Jumping on a spring is extremely exciting but also very challenging. Let's see how far he can go. Google Play download: https://play.google.com/store/apps/details?id=com.guava7.googleplay.csj
