Kouichi Ooyama - is a video game artist. Kouichi Ooyama began his career in 1994 and has worked for companies such as Ape and Nintendo. Kouichi Ooyama's first game was EarthBound which was released 29 years ago. Best Game Kouichi Ooyama contributed to was EarthBound. Kouichi Ooyama's latest work is EarthBound which was released 29 years ago.