The Millennium Puzzle is one of the 7 Millennium Items. It belongs to Yugi Muto. The Millennium Puzzle houses the spirit of Yami Yugi, who assists Yugi and his friends. Yugi was forced to let Hobson hold it while he dueled Seto Kaiba, who was possessed by Nightshroud. The Puzzle is then given to Joey Wheeler for the time being. When Joey is unable to resist Nightshroud's influence, he gives the Puzzle to Naruto Uzumaki to protect it from Nightshroud. Yugi regains the Millennium Puzzle before his duel with Samus Aran.