Super Mario Galaxy
Total: 6.65m at 30 weeks in Japan, 28 Weeks in America, 28 Weeks in Other. Still climbing.
First week sales:
Japan: 260,993 America: 635,162 Other: 193,003 Total: 1,089,158
Wii Fit
Total: 4,37m at 26 Weeks in Japan, 1 Week in America, 5 Weeks in Other.
First Week sales:
Japan: 252,510 America: 819,163 Other: 644,865 Total: 1,716,538
The opening week does not make Wii Fit big. It is all about week after week, just look at Wii Fit history in Japan.