How many movies have Takeshi Kusao and Youichi Oonishi collaborated on?

They have worked on 3 movies together! Their first movie together was Dragon Ball Z: Super Android 13! (1992) while their highest rated movie together was Dragon Ball Z: Broly – The Legendary Super Saiyan (1993). They have not worked together since Dragon Ball Z: Bojack Unbound (1993). They are most known for their animation films together.