sentences:  A role-playing game mode appears in the Game Boy Color version, which is not in the Nintendo 64 version.In this mode, players begin as a rookie tennis player at the Royal Tennis Academy, who must build up their skill by leveling-up through training and practice matches before entering various tournaments.The aim of this mode is to be crowned champion at the academy, although the second part of the game involves the player competing in a tournament to ultimately face Mario, the best tennis player.