If you find other online fighting games too easy to beat, you should try 2D Knockout Boxing, one of the hardest hitting fighting games online. To achieve victory you have to knockout your professional opponent. Punch your enemy to gain super points in order to reach a higher rank. Remember: defense is very important in this fighting game!

Use the mouse to move, mouse click to throw punch. Block an attack from your opponent by pressing Space Bar. For your special skills use C and mouse click (fast). Jump into the ring and start the combat!