How many movies have Ken Ootsuka and Shin Matsuo collaborated on?

They have worked on 5 movies together! Their first movie together was The Guyver: Bio-Booster Armor (1989) while their highest rated movie together was Digimon Adventure 02: Hurricane Touchdown! The Golden Digimentals (2000). They have not worked together since STAR DRIVER: The Movie (2013). They are most known for their science fiction films together.