Spikeball is an intense new sport that is played 2 on 2. It's sort of a funky combo of four square and volleyball. A taut Hula Hoop-sized net is placed at ankle level between a pair of two-player teams. You smack the palm-sized ball down on the net so it ricochets up at your opponents. They have up to three hits between them (just like volleyball) to control it and bounce it back to you. When they miss, you score. First team to 21 wins.