How many movies have Erina Kojima and Takeshi Kusao collaborated on?

They have worked on 1 movie together! Their first movie together was Sergeant Keroro The Super Duper Movie 3: Keroro vs. Keroro Great Sky Duel (2008) and was their highest rated movie together. They have not worked together since Sergeant Keroro The Super Duper Movie 3: Keroro vs. Keroro Great Sky Duel (2008).