That girl recalls how Patch showed her a weird fish-killing technique in his lab aquarium once. No, never, okay, yes. A telecast of Japanese kids whining something musical persuades him where the sight of his ex and her new boy strangely don't. He's in an agony of moral indecision and will allow this device to be used only once, and he destroys the paperwork. It works, and Patch cuts his own lifeline to die with Gojira, who surfaces once, sinks, dissolves to bones and then to nothing.
Hats come off.