1. you need to download and print the mark with this link "http://www.arplanet.com.tw/images/ARPlanetLogo.pdf"2. the camera need to focus the mark.(if it does not focus the mark , it will show you a warning ).3. touch the "START" button and the game will be start4. use the joystick to control you car and enjoy the game.
||Compatible with iPhone, iPod Touch, and iPad. Requires iOS 3.1 or later. iTunes account required