1. This is the 2nd best selling game on the Wii that isn't bundled with anything.
2. It is not yet finished selling. By the end of this generation, it should be about close or equal with Super Mario 64's sales (11 million).
3. 3d platformers in general are harder for mainstream audiences to grasp. Despite that, this is the 2nd best selling 3d platformer right after Super Mario 64.







