How many movies have Sadatoshi Matsuzaka and Shinji Ushiro collaborated on?

They have worked on 4 movies together! Their first movie together was Yo-kai Watch: The Movie - The Great King Enma and the Five Tales, Meow! (2015) while their highest rated movie together was Yo-kai Watch Shadowside: Resurrection of the Demon King (2017). They have not worked together since Yo-kai Watch Jam: Yo-kai Academy Y - Can a Cat Be a Hero? (2019). They are most known for their fantasy films together.