Zorb ball is also named as human hamster ball, since zorb ball is a lot like the hamster ball, but a lot larger and be suitable for human size. Like hamster ball, the zorb ball would need the human being to be inside the ball and make it roll. The huge difference is that the zorb ball is not fixed at a specific place, but to be played at the hillside, which means that the zorb ball will be rolling down the hillside for the player to get the extreme feeling. Rolling down the hill would be really bumpy and extreme, not everyone is suitable for it, especially not for someone who have heart disease or panic attack. And people who are under 13 and up to 60 are not suitable for this game as well.