to jump small objects. the game is happened in a slope. you will run faster and faster once you move down. if move left or right, you would stop unless you press the left and right arrow keys on and on. there are many small objects such as rock, tree, road light and so on stop you. you must avoid all of them. once you strike them, you will stop, worse still, the score returns zero. you can see the best score beside your score. the background is white which make you feel like skiing, however, the obstacles are here and there. you will be easy to fall down if 