How many movies have Kiyoshi Kobayashi and Koichi Yamadera acted in together?

They have worked on 14 movies together! Their first movie together was Megazone 23 (1985) while their highest rated movie together was Lupin the Third: Goemon's Blood Spray (2017). They have not worked together since Lupin III: The First (2019). They are most known for their animation films together.