How many movies have Teiyu Ichiryusai and Toshiyuki Arakawa collaborated on?

They have worked on 8 movies together! Their first movie together was Crayon Shin-chan: Pursuit of the Balls of Darkness (1997) while their highest rated movie together was Crayon Shin-chan: Super-Dimension! The Storm Called My Bride (2010). They have not worked together since Crayon Shin-chan: Burst Serving! Kung Fu Boys ~Ramen Rebellion~ (2018). They are most known for their animation films together.