Released during the golden era of early 2000s sports gaming, Knockout Kings 2001 on PlayStation 2 captured the hearts of boxing fans with its realistic gameplay and roster of iconic fighters. Collectors looking for authentic sports titles will appreciate this used edition for its nostalgic value and engaging mechanics. Players who enjoy competitive fighting games or boxing history will find countless hours of challenge and fun within this classic. The game's depth in strategy and timing makes it a standout among boxing titles from its era.