Unicycle hockey is a team sport, similar to roller or inline hockey, except that each player must be mounted on a unicycle with both feet on the pedals to play the ball.

A team is composed of five players plus substitutes, but there is no dedicated goalkeeper role although one player usually stays back in that position.

Pickleball is a racquet sport that combines elements of badminton, tennis, and table tennis.

Two, three, or four players use solid paddles made of wood or composite materials to hit a perforated polymer ball, similar to a wiffle ball, over a net.

The sport shares features of other racquet sports, the dimensions and layout of a badminton court, and a net and rules similar to tennis, with a few modifications. 

Artistic Roller Skating

Artistic Roller Skating is a sport which consists of a number of events like Figures, Dance, Freestyle and Precision Teams usually accomplished on quad skates, though sometimes inline skates are also used.

Bossaball is a ball game between two teams, combining elements of volleyball, football and gymnastics with music into a sport. It is played on an inflatable court featuring a trampoline on each side of the net.

The trampolines allow the players to bounce high enough to spike the ball over the net and score direct points.