Kosuke Yabuki is an employee of Nintendo. He started working with the company in April 2005 as a planner on various projects, until he became the director of Mario Kart 7 and Mario Kart 8.
As Hideki Konno went to smartphone development, Yabuki replaced him as manager of Production Group No. 9. In this position, he has become the producer of the Mario Kart series, as well as the Nintendo Switch title ARMS.