NAVI – The Legend of Zelda: Ocarina of Time
For the non-nerds: Navi is the little fairy companion that follows Link around throughout Zelda: Ocarina of Time. She serves as a guide, often providing advice and tips to Link (you, the player) to become more adept with game mechanics. Navi is also used to assist the player while aiming with weapons, with a press of a button Navi will fly out and hover around a certain enemy, allowing Link to focus his attacks specifically on one particular target.
For the nerds: “HEY! LISTEN!” Navi was the first character in the Zelda franchise to have a speaking role. She was voice by Kaori Mizuhashi, who would later voice another fairy in Zelda: The Phantom Hourglass.
The follow-up to Ocarina of Time, Majora’s Mask, begins with a cutscene stating that Link has gone on a new journey to find a “beloved and invaluable friend” with whom he “parted ways when he finally fulfilled his heroic destiny.” This is believed to be in reference to Navi’s departure at the conclusion of Ocarina of Time. The reason for her departure to begin with, is still speculated, but is generally accepted that she had to leave because Link wasn’t really a Kokiri so Navi could only stay with him while he was on the quest The Great Deku Tree gave to him.