In addition to the trials of everyday life, Yugi must also protect the secrets of the puzzle from getting into the wrong hands. Many have heard of its powers and how they can make any single person almost invincible. Yugi is wary of those who want to steal the Millennium Puzzle away from him.

And the stakes are high: the loser is subjected to incredibly harsh punishments. When this happens, Atem takes over Yugi's body and mind and challenges the perpetrator to a game. This comes in handy, as Yugi and his friends are always getting into trouble. Because Atem helps Yugi solve puzzles and win Duel Monsters-a card game that magically produces live monsters in a fight-Yugi keeps the Millennium Puzzle around his neck at all times to call on his alter ego when he needs it. When Yugi finally solves the Millennium Puzzle, he frees the spirit of Atem who can now inhabit Yugi’s body. Solomon had heard stories of bad things happening to people who mess with the Puzzle and is worried for Yugi’s safety. The Puzzle sat untouched in his shop for years before Yugi discovered it and became obsessed with solving it. Solomon had retrieved the puzzle decades before, from the Tomb of Atem, an Egyptian Pharaoh. The one game that fascinates Yugi the most is the Millennium Puzzle.

His grandfather, Solomon Muto, owns a game shop where Yugi spends a lot of his time. Yugi Mutou is a young boy who has a knack for games, but is often teased by other kids his age.

Amazon alter ego game