用上下左右控制蛇的方向，寻找吃的东西，每吃一口就能得到一定的积分，而且蛇的身子会越吃越长，身子越长玩的难度就越大，不能碰墙，也不能咬到自己的身体，等到了一定的分数，就能过关。(With the above and below the control direction of the snake, looking for something to eat, every mouthful can get some points, but the snake's body will eat more long body, longer play more difficult, not to touch the wall, don't bite your body, until a certain number of points, can off.)