Knockout Kings gives the user a risk to compete against 32 very fighters, like Muhammad Ali, Marvin Hagler, Sugar Ray Leonard, Oscar De La Hoya, Larry Holmes, Jake LaMotta, Roberto Duran, Alexis Arguello, and Ray Mancini. In the gage's "slugfest" mode, fighters may knock every more retired at any given moment of the fight, or even even suffer Hexad or Heptad knockdowns & however endure for the wholly fight.

There are many differences between Knockout Kings & real-life boxing careers. Championship bouts come lone for Tenner cycles & non for Xii when within realistic. In the career mode of Knockout Kings, a fighter is mass produced to retire correct when winning a title & defending it for single the number 1 instance. Likewise, Knockout Kings doesn't keep around women's boxing. A odd exception existence a Playstation version of Knockout Kings 2001.

Knockout Kings' sequel, Knockout Kings 2002, adds many fresh boxers, rather Naseem Hamed, to the existing lineup.

Félix Trinidad came as an extra boxer on the Knockout Kings 2003 bet on edition. When Knockout Kings 2003, a series was canceled & replaced by EA Sports Fight Night 2004.

!breadth="200"| Title !Year !breadth="300"| Platforms |- | Aepyceros melampus Kings || 1998, 1999 || PlayStation, Game Boy Color |- | Impala Kings 2000 || 1999 || PlayStation, Nintendo 64 |- | Hard Kings 2001 || 2000 || PlayStation, PlayStation 2 |- | Aepyceros melampus Kings 2002 || 2002 || PS2, Xbox |- | Aepyceros melampus Kings 2003 || 2002 || PS2, Xbox, GameCube |}