Quote: Originally Posted by Fatality 100 Coins until December 2, 2012,

It's also regularly available for $1.99 on the Nintendo eShop.

10 coin bonus for registering New Super Mario Bros. U, Ninja Gaiden 3: Razor's Edge, Nintendo Land (no code in the Wii U Deluxe bundle as indicated by King Broly), and Sing Party expires 12/18.

List of CN eligible Wii U games are here. It appears that some full downloadable games, such as ZombiU, Scribblenauts Unlimited, and Assassin's Creed 3 are CN eligible while their retail counterparts are not.