How many movies have Daisuke Gori and Hiroyuki Hoshiyama collaborated on?

They have worked on 4 movies together! Their first movie together was Mobile Suit Gundam I (1981) while their highest rated movie together was Megazone 23 (1985). They have not worked together since Spooky Kitaro: The Great Sea Beast (1996). They are most known for their animation films together.