We played with Juggle U Electronic Juggler game (Goliath Games) and thought it was a lot of fun.
It has two modes of play: beginner and expert. We had to run back and forth and try to catch the balls while juggling them with the machine. There are four balls.
First you try to master catching just one, and once you get better at it, you add more balls to shoot out of the machine and try to catch. It also gave us some good exercise. The game can even help you develop your coordination. We recommend it for kids age
7 and older.