Knockout Kings 2000 Cheats (Nintendo 64)

Pause the game anytime and press c-left, c-right, c-left(x2), c-right.

Hit your opponent until your meter is full and then hit R + L + KICK (A or B) and you will
knock him down even when he has his block on. 

  In the training mode go to OFFENSE and hit the blue guy like this: DOWN + A (twice) DOWN
+ B (twice) I think it's the only way to hit him 30 times.

Pause the game any time and press c-up, c-down, c-up(x2), c-down.