How many movies have Hideo Kojima and Yoji Shinkawa acted in together?

They have worked on 4 movies together! Their first movie together was Zone of the Enders: Idolo (2001) while their highest rated movie together was Metal Gear Solid 3: Existence (2005). They have not worked together since Metal Gear Solid: Digital Graphic Novel (2008). They are most known for their animation films together.