[solved] Guess the opoint.

[JossuaDC]

I should've known Azriel was going to spoil it early on, even though this was a simple piece of DCing.

Yes, it's a weapon.
The balls are standard Davis' balls, but they hit Jisenko's armour because they're spawned by the custom broken_weapon mechanism.
(I could've just used the basic jump_attack in the video)