From WiKirby, your independent source of Kirby knowledge.
The Fairy Queen is a minor character from Kirby 64: The Crystal Shards, acting as the sovereign ruler of Ripple Star.
The Fairy Queen seems to be quite cowardly, as shown by her reaction to the Dark Matter invasion of Ripple Star: she panics until Ribbon discusses what to do with her.
The Fairy Queen is rather unusual among her kind. She is a rather tall figure, by fairy standards, with black hair and long pigtails, a slim golden crown, and a pair of rather large round glasses. Though her wings are quite large, the Fairy Queen is never actually seen flying about.
In Kirby 64, the Fairy Queen sends Ribbon off with the great crystal as Dark Matter takes control of Ripple Star. From there, the queen is possessed by Dark Matter, though this is not known to the heroes. In the False Ending, this fact is made apparent to the player when the Fairy Queen looks menacingly at Ribbon after the heroes leave - but if all the Crystal Shards were collected, the reformed crystal zaps the queen and purges Dark Matter from her.
At the true end of the game, the Fairy Queen and Ribbon award the heroes with crystal medals for defeating Dark Matter.
The Fairy Queen also makes a cameo appearance in Kirby Star Allies, where she is being drawn by Adeleine in the latter's Guest Star picture.
The Fairy Queen possessed by Dark Matter in the false ending.