How many movies have Mayumi Tanaka and Yoshio Urasawa collaborated on?

They have worked on 3 movies together! Their first movie together was Osomatsu-kun: Go For It! Chibita's Oni War (1988) while their highest rated movie together was Nintama Rantarou Movie: Ninjutsu Gakuen Zenin Shutsudou! no Dan (2011). They have not worked together since Nintama Rantarou Movie: Ninjutsu Gakuen Zenin Shutsudou! no Dan (2011). They are most known for their animation films together.