Yu-Gi-Oh! Duel Monsters, a Game Boy release, is the second video game under Yu-Gi-Oh!, succeeding Yu-Gi-Oh! Monster Capsule: Breed and Battle. It marked the initiation of the Duel Monsters series, being the sole entry for Game Boy. The game's Japanese release by Konami occurred on December 16, 1998.
Yu-Gi-Oh! Duel Monsters is the second Yu-Gi-Oh! video game, following Yu-Gi-Oh! Monster Capsule: Breed and Battle. It is the first game in the Duel Monsters series and the only game released for the Game Boy. It was published in Japan by Konami on December 16, 1998.