An exciting arcade tennis game where the characters are standing next to each other. Hippos, ducks, even devils will take to the court of your choice at Thwack. The player closest to you is your athlete, whom you will help win. The first person to score fifty points will be the winner. This is not so much, considering that each successful serve will be worth ten points. Only five times you need to throw the ball into the opponent's field to win the match. Then you can change players and win again. Use the arrows to control. To serve, the hero must stand in a circle, outlined by a dotted line in Thwack.