Yu-Gi-Oh! Duel Monsters II: Dark Duel Stories (遊戯王デュエルモンスターズＩＩ闇界決闘記) is a video game for the Game Boy Color, the sequel to Yu-Gi-Oh! Duel Monsters. Although the gameplay is still much simpler than the OCG, this game introduced 355 new cards, for a total of 720 (in contrast with the 365 total cards of its predecessor). Trap and Ritual Cards were first included in this game.
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