The first game was made for the PS2, as was its main sequel. SE has never released a console KH title for a Nintendo platform. So...
So what you're saying is, Nintendo is so desperate that they need Square Enix's charity to survive?
Wow, it's worse than I thought.
While the first games were released for Sony, you still can't take back the fact that Square Enix jumped ship from Nintendo and pissed a ton of those then-children fans off by doing this. I mean, Square makes the greatest RPG ever for Nintendo and then they just leave them in the dust to support some new console who doesn't have exclusive titles. And they dropped Nintendo entirely. (Here's where you say the stupid bullshit they call licensing fees made Square leave Nintendo.)
And when you say Nintendo, you mean the butthurt fans who want Square Enix to support Nintendo again. So yeah, we need Square Enix's charity. We still love them despite, what they did to Nintendo 20 years ago, and would love for them to make/release a game for Nintendo's new system.