How many movies have Minoru Maeda and Minoru Okazaki collaborated on?

They have worked on 4 movies together! Their first movie together was There Goes Our Hero (1979) while their highest rated movie together was Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World (1983). They have not worked together since Dr. Slump and Arale-chan: Hoyoyo! The Great Race Around The World (1983). They are most known for their animation films together.