Nintendo is featuring two downloads during Christmas week, 2015, one via Virtual Console on Wii U and one through Nintendo eShop on Nintendo 3DS.
From Virtual Console on Wii U: Super Mario Galaxy - Become Mario as he traverses gravity-bending galaxies, traveling in and out of gravitational fields by blasting from planet to planet. Control Mario with the Wii Remote and Nunchuk controllers, power up to reach inaccessible areas and collect Star Bits to either stun enemies or feed Lumas in this Wii classic - now available from the Virtual Console service on the Wii U console.
From Nintendo eShop on Nintendo 3DS: Puzzle & Dragons Z + Puzzle & Dragons Super Mario Bros. Edition - DLC Update - Two gigantic puzzle RPGs, which both use a unique drag-and-match style of game play. And now your Mushroom Kingdom experience expands even further with a downloadable update for the Super Mario Bros. Edition. This free update brings new Mario and Luigi Leaders, new Transformations and new Allies. You'll also find updated Score Attack challenges that include online world rankings, new Free Challenges that let you pick your own team and game-play replays.