Yu-Gi-Oh! Duel Monsters 4 – Saikyou Kettousha Senki – Jounouchi Deck is a Japanese exclusive video game for the Game Boy Color, released on December 7, 2000. It is the fourth entry in the Duel Monsters series. The game features three distinct versions: Yugi, Kaiba, and Jounouchi, with each version allowing access to a unique selection of cards from a pool of 900.
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.