I really love this show. Grew up in the Philly suburbs in the 70s and was in college in the 80s so close enough. :)
We played Dodge Ball with the red kickballs inside the gym. A few people were throwers on the circle and everyone else was in the middle. If you got hit by a ball, you became a thrower. Last kid left in the circle won.
We didn't have scooters but we played some variation of Crab Walk Soccer. Everyone on two lines facing each other in crab walk position. Huge ball in center. Had to push it across the opponents goal with your feet.