How many movies have Maruo Yasui and Shin'ya Tadano collaborated on?

They have worked on 2 movies together! Their first movie together was Sukeban Deka: The Movie (1987) while their highest rated movie together was Sukeban Deka the Movie 2: Counter-Attack of the Kazama Sisters (1988). They have not worked together since Sukeban Deka the Movie 2: Counter-Attack of the Kazama Sisters (1988).