Nintendo

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Elementary school children from School at St. George Place dance following the Nintendo Wii Just Dance video game as part of their physical education class, Friday, Jan. 10, 2014. The physical education teacher Brittany Stags made the request for the Nintendo Wii funds through DonorsChoose.org. (AP {Photo/ Houston Chronicle, Marie D. De Jesus)

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Madison Wang, center front, 5, Michelle Escalante, center, 4, and Ahmed Hemri, right, exercise following the Nintendo Wii Just Dance video game bought for the use of the School at St. George Place students physical education class through crowdsourcing. Friday, Jan. 10, 2014, in Houston. (AP {Photo/ Houston Chronicle, Marie D. De Jesus)

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This photo provided by Nintendo shows a scene from the video game, "Wii Fit U". Nintendo essentially launched the fitness game genre in 2008 with "Wii Fit," and now they're back with an updated edition for the Wii U system that works in tandem with the old Wii Balance Board and the new Fit Meter, a round doodad which measures real-world activity like steps taken and changes in elevation. (AP Photo/Nintendo)