Yu-Gi-Oh! (3-in-1 Edition), Vol. 4 by

[Viz] The manga series that inspired the card game that swept the globe! Tenth-grader Yugi always had his head in some game—until he solved the Millennium Puzzle, an Egyptian artifact containing the spirit of a master gambler from the age of the pharoahs! Possessed by the puzzle, Yugi becomes Yu-Gi-Oh, the King of Games, and challenges evildoers to the Shadow Games…weird games with high stakes and high risks! The diabolical Player Killer, Pegasus’s second gaming assassin, challenges Yugi to a Shadow Game! In the shadow of the Castle of Dark Illusions card, an army of lurking monsters hungers to steal Yugi’s life points—and if he loses, his actual life! Then the action moves into underground tunnels beneath Duelist Kingdom. There Yugi and Jonouchi must conquer the maze of the Meikyu Brothers in a two-on-two duel. Waiting in the Brothers’ deck is the Gate Guardian, lord of the underworld and one of the most powerful monsters of all.