Wallball!

Wallball is a game where you throw a ball against the wall, and I'm going to tell you how to play it. Here are the rules:
1: You have three lives. When you lose these lives, you become a ghost, and you can break any rules when you are a ghost.
2: You can get out if you throw the ball against the wall and someone else catches it before it hits the ground, or if the ball touches you and someone throws it at the wall (and it hits the wall) before you touch the wall.
3: If you touch the ball and someone else throws it at the wall and you touch the wall before the ball hits the wall, you don't lose a life.

4: You can use any body part; your legs, head etc.

5: If you throw the ball and it hits the ground before it hits the wall and someone throws it at the wall and it hits the wall before you touch the wall, you lose a life.

6: If you have the ball and someone yells "Challenge!" you have to stop and throw the ball from where ever you are standing.

7: If you you have the ball and you are backwards and someone yells "Challenge backwards!" you have to throw the ball backwards from where you are standing.

8: If you have the ball and you're on the ground and someone yells "Challenge sitting down!" you have to throw the ball from whatever position you're in on the ground.

Okay, so there are the rules, now you can play the game! Have fun!