1977's Star Wars, without any knowledge of the sequels, is a revenge story. Luke's father, uncle, aunt, and mentor were killed by Vader and the Empire. He joins the rebellion to avenge their deaths. As the movies progress you learn more about Vader, and Luke's quest for revenge transforms into the exact opposite. He throws his saber down and tries to save Vader.
Shenmue was headed in a very similar direction in part II, and as others have said Suzuki himself later stated that Ryo's need for revenge transforms into something else.