The other boxing game to have Mike Tyson removed from it.
The game plays somewhat like Punch-Out, but with a few more punch types and none of the production quality of the original. This game was not made by Nintendo, and frankly being 1992, the NES had seen it's last few quality games years earlier. The game should've been called "Knock Off" since it blatantly rips-off Punch-Out in just about every way. The only thing it added that was missing from Punch-Out was the training mode.
Basically you're a Tyson-esque boxer that, finding nobody on earth able to beat you, decides to fight aliens. It's pretty bad and only worth playing if you want to see a game that is pretty much unknown.