Potemkin's weight and momentum make for a powerful force that is very difficult to stop, especially if acting late. So when the Nightmare Knight ends up not pinned to the floor, Potemkin looks down to his feet until he realizes that the Knight has found a way to circumvent that. Potemkin slips, rolling backwards until he hits wall like a giant bowling ball.

He isn't given any break to pick himself up from that, because more projectiles are going right at him. Potemkin makes a sudden jump to the side, what stars that do end up hitting him not being enough to make his arm buckle. Potemkin keeps moving along the walls of the entrance hall, thinking of how to surprise the Knight so he can't pull tricks like that again.