How many movies have Ryōji Shinmura and Yasushi Shimamura collaborated on?

They have worked on 3 movies together! Their first movie together was Yankee Reppuutai (1995) while their highest rated movie together was Scorpion: Double Venom (1998). They have not worked together since Scorpion: Double Venom 2 (1998). They are most known for their action films together.