Blue Block (iPad) app for $2.99

In an ancient time, the world was ruled by lights and shadows. The Blue Dragon was the last of its kind when the Dark Knight made him prisoner. Now, the survival of the Dragon is in your hands. You must free him to bring back the balance on earth. Be warned, your quest will be hard. The Dark Knight has become immensely powerful. Remember, you cannot hope to defeat him by force. You will have to use strategy and logic to successfully complete your goal.+