ryuzaki57 on 06 June 2015
Splatoon TV campaign in Japan was gigantic, hence the good sales.
But because of that, the game is far from profitable atm : the TV ads cost nearly 1b yens while they sold for 300m so far (see link). So unless it has very good legs it will fail.
http://blog.esuteru.com/archives/8202894.html
Besides, it's not like it moved a lot of systems either.
