How many movies have Megumi Hayashibara and Yoshio Urasawa collaborated on?

They have worked on 2 movies together! Their first movie together was Osomatsu-kun: Go For It! Chibita's Oni War (1988) and was their highest rated movie together. They have not worked together since Bakabon: Three Thousand Miles in Search of Osomatsu's Curry (1992).