How many movies have Chihiro Yamamoto and Koichi Sakamoto collaborated on?

They have worked on 3 movies together! Their first movie together was Kamen Rider Heisei Generations: Dr. Pac-Man vs. Ex-Aid & Ghost with Legend Riders (2016) and was their highest rated movie together. They have not worked together since Black Fox: Age of the Ninja (2019). They are most known for their action films together.