Zombi U (Wii U) is now clearing for $10 at Target alongside a couple of other Wii U titles and accessories:
Rayman Legends - $19
Darksiders 2 - $15
NBA 2K13 - $15
Sribblenauts - $19
Gamepad Play and Protect - $2!! (I have one of these and it works better compared to the third party covers, especially if you perch your gamepad on a cradle)
Other noteworthy titles:
Dragon Quest XI - sentinel of the starry skies $5!! (Nintendo DS)
Happy hunting.
I think Rayman is out of stock, i can't find it anywhere