How many movies have Nakamatsu Toshihiro and Ryuji Yamamoto collaborated on?

They have worked on 2 movies together! Their first movie together was Toyomaru's 'I'll Go Crazy No Matter How Many Times' (1989) while their highest rated movie together was Meiki Hitosuji (1989). They have not worked together since Meiki Hitosuji (1989).