UNCONFIRMED - Life-to-date sales for Wii U/3DS titles in the U.S.

These figures will most likely never be confirmed, but they do come from a trusted source. Also, the figures only indicate physical sales, not digital.

[Wii U] Super Mario Maker – ~944 000 units
[3DS] The Legend of Zelda: Majora’s Mask 3D – ~942 000 units
[Wii U] Splatoon – ~849 000 units
[Wii U] Mario Party 10 – ~633 000 units
[3DS] Monster Hunter 4 Ultimate – ~458 000 units
[Wii U] Yoshi’s Woolly World – 457 000 units
[3DS] Pokémon Super Mystery Dungeon – ~352 000 units
[3DS] The Legend of Zelda: Tri Force Heroes – 312 000 units
[3DS] Animal Crossing: Happy Home Designer – 270 000 units
[3DS] Yo-kai Watch – ~195 000 units
[Wii U] Kirby and the Rainbow Curse – 193 000 units
[3DS] Xenoblade Chronicles 3D – ~147 000 units
[3DS] Puzzle & Dragons Z + Puzzle & Dragons Super Mario Bros. Edition – ~103 000 units
[3DS] Fossil Fighters Frontier – ~93 000 units
[Wii U] Mario Tennis: Ultra Smash – ~67 000 units
[Wii U] Animal Crossing: amiibo Festival – ~63 000 units
[3DS] Chibi Robo! Zip Lash – ~57 000 units
[3DS] Code Name S.T.E.A.M. – ~ 50 000 units
[3DS] Dragon Ball Z: Extreme Butoden – ~48 000 units
[3DS] Hatsune Miku: Project Mirai DX – ~45 000 units
[3DS] Shin Megami Tensei: Devil Survivor 2 – Record Breaker – ~42 000 units
[3DS] Little Battlers eXperience – ~33 000 units
[3DS] The Legend of Legacy – 31 000 units
[3DS] Shovel Knight – ~27 000 units
[Wii U] Shovel Knight – ~23 000 units
[3DS] Etrian Mystery Dungeon – ~20 000 units
[3DS] Etrian Odyssey 2 Untold: The Fafnir Knight – ~19 000 units
[3DS] Senran Kagura 2: Deep Crimson – ~16 000 units
[3DS] Ace Combat: Assault Horizon Legacy+ – ~9 000 units