How many movies have Naoki Ogasawara and Yutaka Ikejima collaborated on?

They have worked on 4 movies together! Their first movie together was Groper Train: Touch That Girl (1988) while their highest rated movie together was Groper Train: Beware of Miniskirts (1988). They have not worked together since Groper Train: Beware of Miniskirts (1988).