In 2009, Finnish developer Rovio Entertainment was on the brink of bankruptcy when a designer's sketch of round, wingless, irritated birds changed everything. This episode follows Angry Birds from a last-ditch physics game inspired by an older Adobe Flash title to a franchise with 6.5 million downloads on Christmas Day 2011, 4 billion downloads by 2014, a World Video Game Hall of Fame induction, and a $776 million acquisition by Sega.

We look at the dopamine loop of predictable physics on early touchscreens, the merchandising empire that made up 45 percent of Rovio's revenue by 2012, Hasbro's Telepods toys, theme parks, a NASA exhibit at the Kennedy Space Center, and two animated films with a third slated for 2026. Then we turn to the darker side: the 2014 Snowden leaks revealing that the NSA and GCHQ harvested user data through the game's  ...