To be fair if this had launched in February judging by hype, preorders, sales of other Wii U exclusives around the time (and me guessing) I suspect it would have done maybe 40-45k first week (or basically right around what it did multi-platform just all on the Wii U). But as a 2D platformer like this gets a lot of sales from legs it makes sense to put it on as many platforms as possible so people who pick it up in a years time or more can have more options (read: chances) to pick it up. I don't like how they handled it, I would have rather seen the Wii U release in February along with other systems around now (I don't think that would have adversely affect the sales on other platforms, just increased Wii U sales) but that's not what they decided to do unfortunately.