We're not talking about a budget indie game here. Register your console and you can choose from five downloadable games: New Art Academy, Super Mario 3D Land, New Style Boutique, Professor Layton and the Miracle Mask and Freakyforms Deluxe.
The good thing about this offer is that it's not just open to new 3DS XL owners. Even if you bought your 3DS XL when it was released in June 2012, you qualify. If you've already registered your 3DS XL system in Club Nintendo, you will still be able to receive the free download if you log in to your Club Nintendo account and follow the instructions on the banner about the promotion by 15 January 2013.
For new 3DS XL owners, you need to register the console through Club Nintendo and the download code will be sent to to your email address. Then you just need to
redeem your code between 1 January and 31 January 2013 in the 3DS eShop
What an amazing offer. Talk about an early Christmas present!