1. Click the green flag and give scratch permission to use your camera. 2. If multiple people are playing, decide who plays which boat(s). Go fullscreen ! :D 3. Click the "start" countdown button. 4. Wave your hand (or move your body) in front of the sensor at the bottom of the screen that is the same color as your boat ! :) 5. When your boat reaches the finish line, if there are more boats than players, you can wave/move over the other sensors to help the remaining boats to the finish line ! :D
