tennis training 2 of 3

the second training under the tennis category now has a orange wall in the back that moves and gets smaller.  the object is the return the ball into the netting, it is trying to teach you about timing your swing to control the direction of the tennis ball off of your tennis racquet.  It gets smaller by a  proportional amount every 4 to 6 points. First time I got 27 points and a silver medal.