Game Boy Software Yu-Gi-Oh! Duel Monsters Cards are unopened!! I bought two copies because I wanted several types of cards. For some reason, I had duplicate cards, so I put them on the shelf for collection. This has been tested and confirmed to work on the original Game Boy. I opened it for confirmation, but the cards are unopened, and I only know about the "Gargoyle" card. Therefore, I'm listing it as "Like New." I don't know what the other two cards are. Please understand. I believe it's in near-mint condition, but since I bought it a long time ago and kept it in my collection, please refrain from bidding if you are looking for perfection, such as submitting the cards for grading, to avoid any trouble.