Extreme Boxer is a strength testing machine. The player punches the bag as hard as possible. The machine through various sensors tells the player, the power behind their punch.
The object of the game is through a series of punches to met or exceed the quota given by the machines. The machine also has a different mode, where instead of measure the power of the punch it can measure the speed of the player's punch.
The machine comes equipped with 150 various sound effects and melodies and can be set on melodies. It can also be set on tournament mode, to see who has the strongest, fastest punch.