This game should have been called "the ultimate buttonmashing game!"
The game is about boxing (very obvious, right) You have about 50 boxers to choose from (even though most of them look the same) and then you get to play the game. The first thing that will bother you is the fact that after you've hit your opponent, his lifebar goes up. And to make it even worse, sometimes your opponent will keep punching towards your face so you can't get close enough to hit him! By the way, the only effective way to knockout your opponent is to use the uppercuts, which forces you to push down and forward constantly and that tires out your fingers.
This game is the evil twin of Mike Tyson's Punchout. It's a waste of both time, money, effort and fingers! So don't buy it.