If you pre-ordered a Wii U Premium bundle then you may need to check the box as you might be missing Nintendo Land.
It seems there are reports that the Wii U Premium box is missing Nintendo Land.
My copy was in the box:
However, just before my delivery arrived I received this email from Amazon:
It’s been brought to our attention that a small number of orders for this item may have been delivered without the advertised game, Nintendo Land, due to supplier error.
In the event that your order was one of the small number missing the game, please use the following code and instructions below, to download the game.
Was your copy of Nintendo Land missing? Let us know by leaving a comment below.