...Then buy the 32GB deluxe version with New Super Mario Bros U + Super Luigi U packed in. Why so? Because it's freaking Mario, that's why! Now I don't have to tell you the plot to a Mario game (They're all the same, Peach gets kidnapped, Mario has to beat bowser to save her, blah, blah, blah.) And this one's no different. Other than the fact you're playing on a Wii U gamepad, and there's a few special items thrown in for your entertainment.
But really, I recommend this title for anyone still stuck in the 80's and 90's. NSMBU Really caters to anyone who loves the old games. The game draws a lot of material from the NES and the SNES games, mostly SMB3, right down to the mini-bosses and main bosses. While some gamers might feel that it's a little stale, I feel that it's like a big expansion and HD facelift to some of my favored classics growing up.
Before closing this review, I just want to vent something (Keep in mind, this review was written just before Feburary 2014) There are a lot of gamers out there who have nothing good to say about the Wii U. They claim it's a colossal failure by Nintendo with a short shelf life when gamers realize how bad it is.
I disagree. Those gamers are only talking like that because the new Legend of Zelda title hasn't come out yet, The new Donkey Kong title is very close to release, Super Smash Bros and Mario kart 8 aren't out yet, but all those games are absolutely mandatory, and when Super Smash Bros comes out, Just watch the sales of Wii U's go crazy.
EDIT; December 23rd, 2017; I was wrong. The Wii U has been officially discontinued this year.