How many movies have Satoshi Shimomoto and Shinsuke Inoue collaborated on?

They have worked on 3 movies together! Their first movie together was Freeway Speedway 3 (1991) while their highest rated movie together was Freeway Speedway 5 (1992). They have not worked together since Freeway Speedway 5 (1992). They are most known for their thriller films together.