How many movies have Kōji Takada and Takuzō Kawatani collaborated on?

They have worked on 26 movies together! Their first movie together was Showdown of Men 4: Tetsu, the White Tiger (1968) while their highest rated movie together was The Red Silk Gambler (1972). They have not worked together since The Man Who Shot the Don (1994). They are most known for their action films together.