Yu-Gi-Oh! Duel Monsters

The first game in a series that would eventually bring Yu-Gi-Oh Dark Duel Stories to the rest of the world, Yu-Gi-Oh Duel Monsters was the first game adaptation of the Duel Monsters game from the Yu-Gi-Oh manga and was one of 2 games from the franchise for the Game Boy, the other being Yu-Gi-Oh Capsule Monsters GB. The objective of the game is for the player to progress through 5 stages of duel monster battles to eventually defeat Dark Yugi. In order to unlock the next stage of duelists the player would have to repeatedly beat every duelist in that stage multiple times in a row.