Eguchi: This was the start of two-screen gameplay.
Iwata: Yes. I did that, too. An experiment using the Wii Zapper4 controller was what inspired us to put a gyro sensor5 in the Nintendo 3DS system, which was in the final phases of development.
Shimamura: Yes. After development of Wii Sports Resort, Yama****a-san and I were thinking about something new that would draw upon the knowhow for Wii MotionPlus.6 We tested gameplay that involved moving the Wii Zapper and having images from the Wii move in sync on a monitor in your hands. It was fairly well received…
Iwata: When (Shigeru) Miyamoto-san saw that experiment, he said that he definitely wanted to put a gyro sensor in Nintendo 3DS, so even though the ship was headed out of the harbor, he called it back.7 This happened after the people in the hardware department had already been declared that "all features are now set!" (laughs)
Yama****a: Yeah. (laughs) We intended to present it as a Wii U project, so when it was snatched away for the Nintendo 3DS, we were sad, but also pleased.