How many movies have Akinori Endō and Akira Kamiya collaborated on?

They have worked on 4 movies together! Their first movie together was City Hunter: .357 Magnum (1989) while their highest rated movie together was City Hunter Special: The Secret Service (1996). They have not worked together since City Hunter Special: Goodbye My Sweetheart (1997). They are most known for their animation films together.