GamePro has an interesting feature article in which they try to argue that the Wii is potentially the most 'hardcore' console of them all. They draw upon things like Wii Fit is clearly aimed at adults, games like Fire Emblem are truly designed to test brain cells and that a lot of people complete the 'easier' games very quickly.
<blockquote>Thereâ€™s a lack of the kinds of adult dark-and-dirty games that do sell well on the Wii, yes. Thereâ€™s limited Call of Duty support, thereâ€™s no Uncharted, and no real Final Fantasy. If developers and publishers put the effort into making one, rather than a light gun spin off (hello Resident Evil, Dead Space), minigame compilation or chibi-cute spin off, would it sell? I think so.
Nintendo isnâ€™t the perfect company, and its grooming of the next generation of gamers through the â€œcasual gameâ€ experiences has, fairly or unfairly, left some of its veterans disaffected. However, the claims that its game offerings are somehow less hardcore or less adult than what is available on the PS3 or Xbox 360 is ridiculous. It might be the kind of 'mature' that doesnâ€™t involve gratuitous violence, and it might be the kind of 'hardcore' that is hidden under a childish polish, but they are there, and whatâ€™s more, they sell. </blockquote>
News Source: <a href="http://www.gamepro.com.au/article/334264/nintendo_wii_ultimate_hardcore_console_/" target="_blank">GamePro</a>