NEW YORK CITY—Sony is pulling out the stops to celebrate the launch of a critical game, LittleBigPlanet, from developer Media Molecule. In the game, you can customize a group of ragdoll characters and use them to solve puzzles to navigate a visually cute world that makes you feel like you’re moving through a model railroad landscape. The console maker needs this game to attract mainstream audiences to the PlayStation 3 and so it held a 24-hour Game Jam at Parsons The New School for Design to celebrate the October 21 game release. Kareem Ettouney, art director of LittleBigPlanet and co-founder of Media Molecule, was on hand to judge the competition. He talked about the competition, as well as the current shift in game design from narrative to user-generated playgrounds, in this exclusive interview.