August 11, 2006 3:42 PM PDT
New York artist Katie Salen (on left) developed the rules for "99 Red Balloons." The game is ideally played with nine teams and 18 balloons. Each team is led by a "Spy Fairy" and "Aerial Navigator." The Aerial Navigator has a tech-free red balloon to attract the public, while the Spy Fairy has a balloon equipped with a wireless camera. The game's objective is to re-create the game of hide and seek and document what is improvised and found.
Photo by Neha Tiwari/CNET News.com