Check the list - copy paste from VGChartz software totals and using single platform counting like the major websites.
The top 25 only has 4 non-Nintendo titles, all stagnant.
Below GTA San Andreas, there's only 4 Nintendo stagnant titles.
The numbers for the Non-Nintendo titles are really close to some climbers such as Wii Sports Resort and Brain Age 2.
With Wii Fit Plus, New Super Mario Bros. Wii, Wii Sports Resort, Brain Age 2, Wii Relax(?), Pokemon Heart Gold&Soul Silver and some other Wii Series Title for 2011 which we can't underestimate the selling power, I think this should become a reality till Xmas 2011. Also, I see no title for PS3 or 360 or PC capable of pulling 12M+ sales, so we can dismiss those.
I even think if Tomodachi Collection (the new "Brain Trainning" in Japan) finds success in the west it can be another ~15M seller.
1 Wii Sports Nintendo 58.35
2 Super Mario Bros. Nintendo 40.24
3 Pokémon Red / Green / Blue Nintendo 31.37
4 Tetris Nintendo 30.26
5 Duck Hunt Nintendo 28.31
6 Wii Play Nintendo 26.62
7 Nintendogs Nintendo 23.46
8 Pokémon Gold / Silver Version Nintendo 23.10
9 Wii Fit Nintendo 22.60
10 New Super Mario Bros. Nintendo 21.01
11 Mario Kart Wii Nintendo 20.84
12 Super Mario World Nintendo 20.61
13 Brain Age: Train Your Brain in Minutes a Day Nintendo 18.75
14 PS2 - Grand Theft Auto: San Andreas Rockstar Games 18.16
15 Super Mario Land Nintendo 18.14 *Stagnant*
16 Pokémon Diamond / Pearl Version Nintendo 17.36
17 Mario Kart DS Nintendo 17.35
18 Super Mario Bros. 3 Nintendo 17.28 *Stagnant*
19 PC - The Sims Maxis 16.08
20 Pokémon Ruby / Sapphire Nintendo 15.38 *Stagnant*
21 PS2 - Gran Turismo 3: A-Spec Sony Computer Entertainment 14.89
22 Pokémon Yellow: Special Pikachu Edition Nintendo 14.64 *Stagnant*
23 Brain Age 2: More Training in Minutes a Day Nintendo 14.60
24 PS2 - Grand Theft Auto: Vice City Rockstar Games 14.20
25 Wii Sports Resort Nintendo 12.81
Possible?
