R0 blue thunder bomb

"How's that for finishing it?" he crowed. The creature threw a punch, but Saxton took it on the cheek, and hit back with a right hook to the temple that caved its skull. And again. And again, until a fist-sized dent sank into its head and black slime oozed from its holes.

But he would not let up. He pulled the monster up onto his shoulders. Chuuya had decreased its weight to carry it, but Hale could simply heft the burden himself. He twisted around and fell to the floor, dropping the wretched thing on its back like a sack of offal. Someone else might've called it a Blue Thunder Bomb.