The King above Kings had defeated this mountain once before, so it did not come to Karna as a surprise when his fists began raining down on one end of the mountain like a machine gun, pieces crushing anything unfortunate enough below. Karna could attack the King of Heroes from the side, but such an act would be cowardly and dishonorable. So instead, he was going to go in from the front. Even when faced with a mountain in his way.
"ORAORAORAORAORAORAORAORAORAORAORAORAORAORAORAORAORAORAORAORAORA!"
With a battle cry of his own, Karna's fists, covered in a layer of fire, began tearing the mountain to pieces. He and Gilgamesh, beating on the mountain from one side each, tore through the entire thing in a matter of seconds, reducing it to nothing but rubble on the ground below. Face to face, once again, Karna's fists collided with Gilgamesh's right cheek, only to suffer a similar blow on his own left not a second later.
Then, faster than any eye could follow, blows began to rain down by the dozen on each great hero. Fists were deflected, blocked, struck true and dodged five times a second, and the sheer force of wind from the blows caused nearby buildings to suffer extreme damage.
It was two unstoppable, immovable objects that collided a thousand times a minute. While Karna had the clear advantage in skill and the conceptual protection of his body, the King of Heroes was faster and stronger and tougher in body. Simply their heels digging into the building below them began to tear the tower-like skyscraper down floor by floor, as gold met gold in a flash of sparks for the ten thousandth time, and within minutes they were standing upon flat soil.
"Come on, King of Heroes. Is this all you can manage despite the venom you spat at me?! Show me the strength that toppled the gods and overcame death!"