Microsoft, Nintendo, EA, Ubisoft, Square Enix, Bethesda and more confirmed for this year's show.
Time spent playing has a greater impact than the type of games played.
Also coming to mobile devices on March 26.
Unannounced Skylanders rival coming later this year.
But Miyamoto still focused on console development, Iwata says.
Was first seen in the Mortal Kombat X comic.
Event will be hosted at the Anaheim Convention Center on November 6 and 7.