Finally, and this is quite an enticing prospect, Nintendo are offering a free Wii U game if you purchase and register Mario Kart 8 on Club Nintendo before 31st of July 2014. Games included are Nintendo Land, New Super Mario Bros. U, Game & Wario, Pikmin 3, The Legend of Zelda: The Wind Waker HD, Sonic Lost World, Mario & Sonic at the Sochi 2014 Win