Knockout Kings for the Nintendo GameCube offers all the big-time boxing moments, lightning-fast gameplay, and other outstanding features that make the Knockout Kings franchise the undisputed champion of boxing video games. Create countless dream bouts as you fight as or against some of the greatest boxers of all time, including boxing legends Muhammad Ali, Joe Frazier, Sugar Ray Leonard, and more. Or, go into the ring as or against some of today's lions of the ring, including Felix Trinidad, Lennox Lewis, Oscar De La Hoya, Floyd Mayweather Jr., Fernando Vargas, as well as over 20 fictional boxers. Lace up your gloves and get ready to get it on.