It only makes an unholy noise when he gets near it with flame, but it's determined to sink its many irregular limbs into the thrashing Invader. Bucky's scream comes out a gurgle as he tosses his head back, jerking around unnaturally for a moment before he turns wide eyes on Toro. They're blank, and they're angry. He practically howls before he's lashing out at his best friend, blindly and devoid of skill, though it isn't long before the knife appears in his hand. The sounds he makes aren't anything resembling words, just shrieks and howls of fury and pain as the thing pulsates on his back.