Get moving, run away from the heartbeats. You can chase or you can run. Get outside with your smart phone, enable your gps, get some friends to do the same. The heart beat will indicate the distance and change in distance between you and the others. It's tag but upgraded. http://bahbom.appspot.com
Stay Inside The Box: The whole game takes place in just one screen, no scrolling or changing screens in any way is allowed.
More the Merrier: The game is a competitive or cooperative multiplayer "party game" (i.e., based on minigames, humor, 4+ players, audience engagement, etc.), meant for one screen or more.
Two Are Better Than One: The game requires two or more different mobile devices to play.
May the (Web) Force Be with You: The game runs in a browser with no plugin.