Mouse = let you control the paddle. Paddle = let you bounce the ball and avoid the ball fall to the White line, it also can and you a score.
This is another project that the copy by Scratch Team. Is a ping pong game that bounce around, you lose by touching the white ling on the bottom, if you touch the paddle, it will bounce and add your score but it's forever like Flappy Birds. PS:I wrote it like a essay