How many movies have Hajime Tabata and Shōji Sakai collaborated on?

They have worked on 4 movies together! Their first movie together was Groper Train: Good Office Lady, Bad Office Lady, Normal Office Lady (1985) while their highest rated movie together was Eizu o buttobase: Momoiro puttsun musume (1987). They have not worked together since Groper Train: Touch That Girl (1988).