Some of the responses in here
Not some of you (Sony stans) acting as though it would break some record.
-There was no promo at all.
-This is only based on Japan.
-Nobody is checking for Wii U outside Mario Kart, Super Smash and the occasional X/Bayonetta.
-This is based on 4 days of tracking only
Don't act as though this is some real flopping like certain people's albums which isn't even in the Top 100 iTunes anymore. For what it's worth, Donkey Kong did respectable on namesake alone. It'll definitely crack 1m sales LTD (since it will definitely have legs) so this isn't a problem.
It's a problem if Mario Kart 8 or Smash does these kind of numbers.