Gaga ball is a variant of the classic playground sport dodgeball. But instead of running around throwing balls that can smack kids in the face, head, and other sensitive body parts, gaga ball limits the impact. Players slap or hit the ball, aiming to hit other players at or below the knees. If you’re hit, you’re out. The GaGa Ball Pit. The “GaGa Ball Pits” are typically constructed in either an Octagon or Hexagon shape with 24” or 30” high walls that extend anywhere from eight to ten feet in length, creating a play area of 15’ to 25’ wide. .