How many movies have Koichi Yamadera and Roko Takizawa acted in together?

They have worked on 6 movies together! Their first movie together was Go! Anpanman: Nosshi the Dinosaur's Big Adventure (1993) while their highest rated movie together was Go! Anpanman: The Pyramid of the Rainbow (1997). They have not worked together since Let's Go! Anpanman: Baikinman and Lulun (2024). They are most known for their animation films together.