How many movies have Ryuji Tsukamoto and Shunji Sakai collaborated on?

They have worked on 12 movies together! Their first movie together was The Jumping Magistrate (1952) while their highest rated movie together was Ishimatsu: the One-Eyed Avenger (1960). They have not worked together since Young Master Yakuza: Edoite Goblin (1963).