He went on to program Final Fantasy II, released in 1988, introducing an "emotional story line, morally ambiguous characters, tragic events," and a story to be "emotionally experienced rather than concluded from gameplay and conversations."
He then programmed Final Fantasy III, released in 1990, which introduced the classic job system, a character progression engine allowing the player to change the character classes, as well as acquire new and advanced classes and combine class abilities, during the course of the game [REF].