The thing is these types of titles are almost always new or relatively lesser known IP that break out and become phenoms -- Brain Training "changed" the DS' trajectory. Monster Hunter did the same for PSP. Pokemon for the Game Boy. The original Super Mario Bros. for the Famicom/NES.
Not Mario Kart 8 or Smash Brothers 5. That's kind of the problem with Nintendo's approach is where is this fabled "break out" title? I don't see anything comparable to a Brain Training or Pokemon for Wii U. Iwata's said this for a few years now and it's mostly just talk.







