Masahiro Sakurai, producer behind upcoming 3DS game Kid Icarus Uprising, recently explained how the project came to be with Iwata.
In an interview with 1up, he explains that the game original begun as a simple, fast-paced original shooter. It eventually weaved roots with Nintendo's Kid Icarus after discussions with Satoru Iwata and co.
It's the first 3DS project ever launched -- simple but technically complex, easily learned but deep enough to satisfy gamers. We're interweaving a variety of conflicting watchwords into the game as development continues.