How many movies have Mitsunori Hattori and Tetsuya Sasaki collaborated on?

They have worked on 3 movies together! Their first movie together was Kaiki Senyaichiya Monogatari: !! no Maki (1991) while their highest rated movie together was Siren the Ghost Story Forever (1995). They have not worked together since Siren the Ghost Story Forever (1995). They are most known for their horror films together.