These are the games you can buy on Nintendo.com right now:
3DS retail
Ocarina 3D, Pokemon Rumble Blast, Super Mario 3D Land, Mario Kart 7, Kid Icarus Uprising, Mario Tennis Open, New Super Mario Bros 2, Fire Emblem Awakening, Pokemon Mystery Dungeon: Gates to Infinity, Luigi's Mansion: Dark Moon, Lego City Undercover; The Chase Begins, Donkey Kong Country Returns 3D, Animal Crossing New Leaf, Mario and Luigi Dream Team, Pokemon XY, Mario Party Island Tour, The Legend of Zelda Link Between Worlds, Bravely Default, Professor Layton and the Azran Legacy, Yoshi's New Island, Disney Magical World, Mario Golf World Tour, Kirby Triple Deluxe, Tomodachi Life, Professor Layton v Phoenix Wright Ace Attorney, Super Smash Bros
3DS eShop Original
3D Classic Kirby's Adventure, Pushmo, Pokemon Dream Radar, Crashmo, Kersploosh!, Dillon's Rolling Western The Last Ranger, Mario and Donkey Kong Minis On The Move, Pokemon Battle Trozei, Kirby Fighters Deluxe, Dedede's Drum Dash Deluxe
3DS VC
Super Mario Land, Link's Awakening DX, Kirby's Dream Land, Super Mario Land 2 6 Golden Coins, Metroid II: Return of Samus, Super Mario Bros, Metroid, Punch-Out Featuring Mr Dream, Legend of Zelda, Wario Land Super Mario Land 3, Dr. Mario, Mario Golf, Zelda II, Wario Land II, Lost Levels, Oracle of Seasons/Ages, Super Mario Bros 2, Kirby's Dream Land 2, Donkey Kong (NES), Wario Land 3, Mario Tennis, Super Mario Bros 3
Wii U Retail
New Super Mario Bros U, Lego City Undercover, Pikmin 3, The Wonderful 101, Wii Party U, Mario and Sonic Sochi Olympics, Super Mario 3D World, DKC Tropical Freeze, Mario Kart 8, Hyrule Warriors
Wii U eShop
Art Academy Sketchpad, Pokemon Rumble U, NES Remix, Dr Luigi, NES Remix 2, Pushmo World
Wii U VC
Earthbound, Metroid Fusion, Mario and Luigi Superstar Saga, Advance Wars, Wario Ware Mega Microgames, Kirby and the Amazing Mirror, F-Zero Maximum Velocity, Golden Sun, Yoshi's Island: SMA3, Wario Land 4, Zelda: The Minish Cap, Mario Tennis Power Tour