Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist is a video game for the Game Boy Color released exclusively in Japan on December 7, 2000. It is the fourth entry in the Duel Monsters series and features three distinct versions centered on characters Yugi, Kaiba, and Jounouchi. Each version provides access to a unique selection of the game's extensive roster of 900 cards.
Yu-Gi-Oh! Duel Monsters 4: Battle of Great Duelist is a Japan only Yu-Gi-Oh video game for the Game Boy Color, and the fourth installment in the Duel Monsters series. It was released December 7, 2000 as three separate versions (Yugi, Kaiba, and Jounouchi), each being able to use only a certain selection of the 900 available cards.