-Games go up to 15 around the world, but in Pennsylvania scores go up to 25.  You must win by 2 points

   -In volleyball you score only when you serve and the other team makes an error, but in Pennsylvania you score even if you aren't the attacking team.  

   -The ball may not touch the net on a serve, but once the rally is in  progress the ball may touch the net.  

   -It is illegal for a persons bodypart to touch the net.  

   -The ball is in bounds if it hits the boundary line.

   -Each player must rotate into the six different positions in each game.

   -The winner is usually decided by the best of 3 games.

   -You may not completely cross into the opponents court, but a bodypart may cross into it if the majority your body is still on your side of the court.  

   -You are allowed 12 substitutions per game, and each player may enter the game up to 3 times.  

   -When you serve you must stand behind the endline.

   -You are allowed to hit the ball with any part of your body above the waist.  You may not hit the ball consecutively, and your team may only hit the ball 3 times in a rally. 

   -The playing court is 60x30 with a 2in. sideline.

   -The height of the net varies depending on age and gender, but the official height for regulation volleyball is 7 ft.11in. 

    -Below are different types of legal hits you can use to play.