So Mario Kart 8 Isn't Going To Give The Wii U Even 1 Month At 100k+ In The US?

[KLXVER]

Depends on what you mean by underperform though...

NSMBU has sold over 4 million. Thats about 65% of the install base.
MK8 has sold over 2 million in a month. Thats about 33% of the install base.

Dont see any PS4 or XB1 games hitting that percentage.