Serve
The point starts with a serve which, like in tennis, must be hit to the opposite square. The serve is under-hand, with a first and second serve allowed If the ball hits the net and bounces in the box, it is a let.
Play
The ball must bounce on the ground before touching any structure and must then be returned before the second bounce. Players can use their own windows to return the ball. Volleys are permitted.
Scoring
Exactly the same as tennis. Six games are needed to win a set, and the player (s) that win two sets are awarded the match. Players will play a 7 point tie-breaker if the score reaches 6 games all.