Racquetball would be one of the tougher sports on this list to make into a video game. The main reason is camera positioning. In racquetball, all four walls and the ceiling are playable surfaces. After the ball is served, it cannot touch the floor. Although the ball must hit the front wall before the player returns the rally, it can hit any of the other playable surfaces.
Perhaps the camera could remain stationary at the front wall like in the video, but that might make it hard for players to gauge distance or how hard they may need to hit it to return the ball to the front wall.
Anyway, as stated before, if tennis can have 300 video games, then racquetball ought to have at least one.