Obesity rates among Australian teens are among the highest in the world. To make a long-term commitment to motivate teens to stay active, we partnered with the Bicycle Network to form The Happiness Cycle. Our mobile app turned cycling into a game that could be played among friends. GPS mapping tracked your ride, allowing you to claim blocks and compete against friends. You were also rewarded with badges when you rode certain distances, times and elevations, which you could share on social media.