How many movies have Akio Otsuka and Yasuhisa Ito collaborated on?

They have worked on 2 movies together! Their first movie together was Metal Gear Solid 2: Digital Graphic Novel (2008) and was their highest rated movie together. They have not worked together since Metal Gear Solid: Digital Graphic Novel (2008).

Role
Solid Snake / Solidus Snake (voice)
Crew
Sound Director
Crew
Sound Designer