Click the green flag to begin. You must avoid anything that seems dangerous along the path in the middle, if you do then you will loose health. You can move up and down and side to side. Don't forget that a police car will appear and come out of nowhere, so be on the lookout. Everything else things that are on the sand are not dangerous. Finally, different objects that are dangerous in the path will reduce you health depending on how dangerous they are. For the objects that are either food, water, or clothes, will increase you health by one, and if you run out of health or the police catches you then it's game over for you, but you can always play again!
Credits to my computer science for his help!
