International Karate 2000 is a single-player and multiplayer action fighting game in which players select a martial artist and engage in one-on-one combat using a variety of punches, kicks, and special moves to defeat opponents. In this game, the setting revolves around martial arts tournaments where fighters from different backgrounds compete to prove their strength and skill, set within a stylized, arcade-style environment on the Game Boy Color. It stands out with its nostalgic gameplay that appeals to fans of classic fighting games, enhanced by new play modes that add variety and challenge, along with smooth controls and engaging combat mechanics suited for handheld gaming.