Yoshio Matsuoka is a Japanese game designer and director, known primarily for his work at Nintendo. He began his career with the Nintendo R&D1 team, contributing as a designer to iconic titles such as *Metroid II: Return of Samus* and *Super Metroid*. His reputation is primarily tied to the creation and direction of the *WarioWare* series, for which he directed the inaugural installment, *WarioWare, Inc.: Mega Microgames!*, and the subsequent acclaimed entries *WarioWare: Twisted!* and *WarioWare: Touched!*. With this series, he introduced the innovative concept of "microgames" to be completed in just a few seconds, influencing numerous developers. His career also includes directing *Rhythm Heaven Fever*, another title renowned for its creative, rhythm-based gameplay. His experimental approach has received significant accolades; in particular, *WarioWare: Twisted!* won an Innovation Award at the prestigious Game Developers Choice Awards, solidifying his reputation as one of the most original designers in the industry.