How many movies have Mikio Narita and Teruhiko Arakawa collaborated on?

They have worked on 8 movies together! Their first movie together was The Viper Brothers: Up on 30 Charges (1974) while their highest rated movie together was Operation Plazma in Osaka (1976). They have not worked together since Yakuza Ladies (1986). They are most known for their drama films together.