Mari Yamaguchi - is a video game composer. Mari Yamaguchi began his career in 1992 and has worked for companies such as Capcom. Mari Yamaguchi's first game was Mega Man 5 (1992) which was released 31 years ago. Best Game Mari Yamaguchi contributed to was Mega Man 5 (1992). Mari Yamaguchi's latest work is Mega Man 5 (1992) which was released 31 years ago.