Nintendo is currently offering quite the bonus in the UK for participating in their new Nintendo Network console linking feature that is now available for the Wii U and 3DS. All you have to do is link your 3DS to your Wii U Nintendo Network ID, and you'll get a free download for Super Mario Bros. Deluxe, that is, if you live in the UK. So, if you've got a Wii U, a 3DS, and you live in the United Kingdom, follow these steps to link your consoles.
1. Head to the Nintendo eShop on your Wii U console.
2. While you're in the eShop, select the My Menu button.
3. Under Settings, select the Club Nintendo account button.
4. Enter your Club Nintendo account information and select Link.
That's it. Follow the rest of the on-screen instructions and you are good to go. Make sure you link your 3DS by January 31, 2014!