From here:

SM: I just want to make games that make high-school girls happy. And high-school boys, too.

Oh yeah. Miyamoto is letting his mission slip.

He’s just in it for the chicks.

Also!

Student: Ah, um, um… What do you think of girl games?
SM: Sorry, what?
I: Umm… What do you think of “bishoujo” games.
SM: Oh.

He seems… caught rather off-guard.

“What… kind of girl games do you mean? … Oh, I see. Ahem!”