When Yugi solves the Millenium Puzzle, he is possessed by the spirit of an ancient Egyptian gambler, who sides with Yugi when he challenges evil-doers to play the Shadow Games.
General Note
Translation of: Yu-gi-oh!
Content Note
V. 1. The millenium puzzle -- v. 2. The cards with teeth -- v. 3. Capsule monster chess -- v. 4. Kaiba's revenge -- v. 5. The heart of the cards -- v. 6. Monster fight! -- v. 7. Monster world.