A set of four original Japanese Yu-Gi-Oh! Duel Monsters game cartridges for Nintendo Game Boy and Game Boy Color, released by Konami. The lot includes the following titles: Yu-Gi-Oh! Duel Monsters (1) – Game Boy Yu-Gi-Oh! Duel Monsters II – Game Boy Color Yu-Gi-Oh! Duel Monsters III: 三幻神降臨 (Sangenshin Kōrin) – Game Boy Color Yu-Gi-Oh! Duel Monsters 4: 最強決闘者戦記 (Saikyō Kettōsha Senki) – Game Boy Color These four titles represent the early generations of Yu-Gi-Oh! video game adaptations and are popular among collectors of Japanese retro games. Cartridges only; no boxes or manuals are included. Condition is good overall with normal signs of handling. A great set for collectors or fans of the Yu-Gi-Oh! franchise. Method of Shipment FedEx or Japan Post NOTICE The lot will be carefully packaged and shipped by FedEx or Japan Post. Delivery usually takes 1–2 weeks. The shipping method may vary depending on the item price and size. Sometimes Customs or the delivery company in your country may contact you by phone or email for clearance. Please make sure you are available to respond. If not, the parcel may be returned to me, and reshipping will cost more than twice the original shipping fee. I appreciate your cooperation.