Gamers consider a trip to this 10,000 square-foot retail store overlooking Rockefeller Center a kind of pilgrimage to a high-tech mecca. On the first floor, there’s a “Gameboy bar” and a “DS circle,” where you can play the latest games, as well as Pokemon merchandise. Exiting the stairway on the second floor, you'll find an exhibit chronicling Nintendo’s history. Also upstairs, you can play an array of Wii games or purchase products from plush toys to backpacks to sheets emblazoned with Nintendo characters. You may have trouble getting the kids to leave.