In this game, you have to punch your opponent like in real boxing. What you do is press the fire button and your players arm will extend. This is how he punches. You then have to get close to the enemy without getting hit. Then press fire and you will hit your opponent. You might miss his face (which is the only target that does damage) or hit his hands (like a block). So, you need to aim well and at the same time, dodge your opponents attacks.