Of course this is based on the Picozine #1 tutorial, but I really customized it, and I think it's now interesting to play it.
Every 5 points you get a life.
If the ball hits the paddle at left, then it goes left,
and if the ball hits the paddle at right, then it goes right.
But you'll never be able to get it into a perfect vertical movement, so, no infinite score by doing absolutely nothing!