You always want to try new moves when you're playing and it feels good when you pull out some neat ones. This definition sums up the whole feeling of the exercise. The hackers admit that they were beginners once but still had no trouble getting into it. But once you figure out how to do it and you get your own style, and you're able to keep it going in the circle, it's really fun. After mastering the basics, the next challenge is developing personal technique.
Style makes the exercise challenging when playing as a group.
Everyone's got their own style of kicking the sack. Apart being from a lot of fun, the hackers find the game to be helpful for things like improving coordination and balance. It can be a foot-juggling exercise, but hackey sack is great for working in a team. The aim when playing with partners is never to drop the sack, so it keeps going in the circle. The sack is also a relief from daily stress.