If you, like me, have been vaguely intending to pick up ZombiU at some point but never really got around to it, maybe this'll give you the push you need like it did for me. Best Buy is running a promo where a select number of Wii U games are being offered for $8, including ZombiU, Ninja Gaiden 3, Black Ops 2, and Cabela's Pro Hunts.

Promotion page

At the very least, this promotion is running in the US, but I can't tell what other regions may be included in the offer, if any.

While ZombiU has become eclipsed by the slow trickle of quality first-party Wii U games that have made their way onto shelves, it's consistently been well-regarded as a fairly high-quality (if flawed) survival horror experience that uses the GamePad in interesting ways, and one of the best Wii U launch games. I'm looking forward to getting to play it.