Using your Fart Ninja figure is super easy. First, find a good spot to hide it. When an unsuspecting person gets close, the motion - activated sensor will trigger one of the 10 realistic fart sounds. To test it out, just pull the finger tab in the back. It's great fun for kids aged 5 and up. As for maintenance, keep it away from water as it has batteries inside. If the sounds start to get weak, it might be time to replace the included batteries. And don't forget to collect all 8 figures in Series 5 for the ultimate Fart Ninja experience!