Knockout Kings 2000

Knockout Kings 2000 (known as Box Champions 2000 in Europe for the Nintendo 64) is a video game developed by Black Ops Entertainment and published by EA Sports for the PlayStation and Nintendo 64.
Gameplay.
"Knockout Kings 2000" features 25 fighters, including Muhammad Ali and Sugar Ray Leonard, and includes the ability to create a custom boxer.
A pound for pound boxing arcade style where players can play any of these three modes: Championship, Slugfest, and Training. The "Super Punch" is used where players can instantly knock down his opponent to the floor.
Reception.
Adam Pavlacka reviewed the PlayStation version of the game for "Next Generation", rating it three stars out of five, and stated that ""Knockout Kings 2000"'s biggest strength lies in its realism. The lack of arcade play is going to turn off a lot of potential fans."