How many movies have Hiroshi Butsuda and Shuichi Oshima collaborated on?

They have worked on 21 movies together! Their first movie together was Kamen Rider Ryuki: EPISODE FINAL (2002) while their highest rated movie together was Kamen Rider THE WINTER MOVIE: Gotchard & Geats Strongest Chemy★Great Gotcha Operation (2023). They have not worked together since Kamen Rider Gotchard: The Future Daybreak (2024). They are most known for their action films together.