How many movies have Masaaki Yuasa and Yoshito Usui collaborated on?

They have worked on 8 movies together! Their first movie together was Crayon Shin-chan: Action Mask vs. Leotard Devil (1993) while their highest rated movie together was Crayon Shin-chan: A Storm-invoking Jungle (2000). They have not worked together since Crayon Shin-chan: Intense Battle! Robo Dad Strikes Back (2014). They are most known for their animation films together.