Whatever Clovis was so confident about quite obviously depended upon a single factor. Lelouch firing his gun. As soon as that happened it would all become clear. He was making no obvious moves to attack or defend himself, and likely would not do so until he was under direct assault. And so, Lelouch took the only rational course available to him.

To begin with he lay on the ground, holding the gun at arm’s length away from his body. After which, he twisted his grip into a form that should have left it impossible to aim, yet held the gun steady. Away from his body. Pointed towards Clovis.

And then Painted Black spread across the ground, lining itself up with the gun’s sight. Enabling Lelouch to turn his grip even in this position, to keep his aim as precise as ever. And then! A gunshot rang out through the room. The tiny explosion propelling the bullet through the air towards its intended target - Clovis’ leg - with a devastating precision. Surely Clovis would expect a shot to the head or torso, an intended lethal shot to end this supposed battle immediately. Surely that would bring an end to it all!

Except it did not. The Wall shifted and performed two actions at once. The first intercepted the bullet, the next sent a kick through the air that left a considerable dent in the wall approximately where Lelouch would have been standing had he fired the gun from that angle in a normal manner. Like a cobra strike. The Wall kicked back towards Clovis and was by him again like it had never even left.

For a few second Lelouch didn’t move at all. His ears were still ringing. The Wall’s strike had been louder than the gunshot by a considerable margin. If that had hit him, his bones would have been reduced to powder. He would have been little more than a bloody smear that Clovis could leave there for future gatherings, where he could say “Oh that? An uppity would be assassin that I killed with my bare hands.”

-Lulu's Bizarre Rebellion Chapter 3