Kirito showed off a sharp momentum as he too moved.

He fearlessly rushed towards the light blue trajectory Egome drew out.
His right hand moved and carved out a bright purple line in the air from
the left to the right, and also another attack— from the right to the left.

*KIIN!!* A sharp metal sound was released, passing through the walls
of the arena, and seemed like it could be heard from all the streets and
corners of Zakkaria.

A sliver glow danced high in the air, reflecting off the light from Solus
above as it slowly landed. A blade that was sliced from the edge was
stabbed straight into the red marble stage.

Kirito's sword skill was really so fast that even the observer did not
notice it at all, completely. However, it did see the crucial moment.

The sword swung from left to right and immediately went from right to
left. As the speed was too fast, it felt like Kirito was attacking with two
swords from both left and right sides. In fact, there was only one
metallic sound. These two hits resembled beasts gnawing as they
accurately hit the same point—and shattered Egome's sword. With a
tournament sword that had its Life reduced by half, the sharp sword that
had 5 levels of priority was...

Egome's eyes widened as he remained still. He, who had swung down
the sword with only the hilt left vertically, could not help but tremble.
Kirito, who maintained his sword swinging position too, whispered into
Egome's right ear from a nearby position,

“Aincrad style Twin-consecutive-hit Skill... «Snake Bite»”

(Alicization Running, 203)