The Wii U has struggled to lure consumers as the appetite for mobile and tablet gaming grows.
Stiff competition from rival devices -- Microsoft's Xbox and Sony's PlayStation -- has also hurt the electronics maker. Microsoft(MSFT) and Sony(SNE) have turned their gaming consoles into integrated, computing devices and new models of the devices released late last year were in hot demand.
Nintendo keeps betting on Wii U
At the same time Nintendo, maker of a string of best-selling games including Mario Bros. and Wii Fit, has shied away from online gaming and entertainment-based features.