How many movies have Shinya Takahashi and Shuji Tanaka collaborated on?

They have worked on 3 movies together! Their first movie together was Black Jack: The Two Doctors in Black (2005) while their highest rated movie together was Yo-kai Watch: The Movie - The Great King Enma and the Five Tales, Meow! (2015). They have not worked together since Yo-kai Watch: The Movie - The Great King Enma and the Five Tales, Meow! (2015). They are most known for their animation films together.