This is a free online tennis game, which has very little in terns of graphics but still delivers a lot of fun. You get to select a rag-doll character and play against other players and win trophies as well as gain experience. As you go along the game, you will get skill points which you can use to upgrade your player at the end of very level. You use the WASD keys or the arrow buttons to get the player to hit the ball. In order to hit the ball, you have to wait for it to come into your court, which is the moment when the shadow of the ball is on the same level as the shadow of the player. There is a calculator that will show you the trajectory of the ball, in order to help you in timing and placing your shots, but this will disappear once you have win two games. After this, you can only turn it on in the settings menu; using the trajectory calculator in higher levels will reduce your XP, or skill points and you will not win any trophies when you win a tournament. In order to get acquainted to the game, you should play the training mode first before you move to the competitive levels. You can also see your achievements in the menu after each level is completed. In the practice mode, you will be hitting the ball against a wall, and you see the shot streaks in the bottom pane of the game, and the top one will show you the speed of your last strike. If your computer is old, you can tweak the settings of the game to use low graphics and frames per second; this will ensure that the game does not stall or slow down when you are playing.