But perhaps one of the greatest strokes of creative genius in Nintendo's continuing stream of new applications is the Wii Fit, an add-on device targeted directly at women wanting to Takao Sawano, general manager of development for Nintendo, as he watched sumo wrestlers being weighed in for a television match. The large athietes were so heavy that they had to have each foot placed on a separate scale. Sawano got an idea about the possibility of tracking a user's shifting weight on a game pad as he or she shimmied and twisted his or her way through virtual worlds.