
As far as boxing games go, this one is quite fun. You create a character by selecting a balance of Speed, Power, and Stamina. Then you fight your way through a league of outlandish boxers, with training sessions where you can improve your stats in mini-games. This is the formula that boxing and other martial arts games would adopt in their career modes later.
The last fight was a bit unreasonable, but I managed to beat it using the power of autofire.