I bought a Wii U and the Zombie U game to see if the Wii U was worth buying. The U pad works great with the game. One thing you do with the U pad is to use it as a scanner so you can see in the dark in places where there are no light fixtures. After you get killed, your new avatar has to find your former self who is now a Zombie and decapitate him to get the tools you acquired in your last life. The U pad adds a great new dimension to the game. I was hesitant to buy the Wii U, but Zombie U made the purchase worth it.
I love my Wii U, i think its far superior to the Wii, and the quality of that gamepad is incredible. Ive been playing scribblenauts like crazy. The game is great, even for casual or non gamers to play with.