Kazuyoshi Osawa - is a video game programmer. Kazuyoshi Osawa began his career in 2003 and has worked for companies such as Nintendo. Kazuyoshi Osawa's first game was WarioWare, Inc.: Mega Microgame$! which was released 21 years ago. Best Game Kazuyoshi Osawa contributed to was WarioWare, Inc.: Mega Microgame$!. Kazuyoshi Osawa's latest work is WarioWare, Inc.: Mega Microgame$! which was released 21 years ago.