Timing Game Planning

My Timing Game is a ping pong game. At the bottom of my background, there is a red line were if the ball touches it, the program will stop. You can move your paddle left, right, down, and up to hit the ball. I have three sprites for now, a ball, paddle, and directions for the sprites. Every time when someone hits the ball with the paddle and the ball goes up, your score will increase by 1, but if the ball touches the red line, your score will reset. Your will have 20 seconds to have as many points as you can in that time.