The Millennium Star is a character that appears in Mario Party 3. He is the "true" Millennium Star as the player learned from defeating the fake one in a battle.
History
The Millennium Star is only seen near at the end of Story Mode after he was impressed by the player's skills during the course of the game. He then awards the title of "Superstar" to the player and will appear in the corner of the screen during the end credits. As soon the credits end, the Millennium Star flies at the screen where it then shows a near real-life Mario Party board with the words "The End" at the bottom.