Kiryu is the Mechagodzilla featured in Godzilla Against Mechagodzilla from 2002 and Godzilla: Tokyo S.O.S. from 2003, built around the skeleton of the original Godzilla and operated as Japan's mechanical defender against giant monsters. Its maser weaponry belongs to the directed-energy arsenal long associated with Toho's Godzilla films, where such beams signal advanced military technology facing an unstoppable creature. Online, Godzilla fans have lifted the beam sound into edits, versus videos, and soundboards, keeping it in circulation because it instantly identifies a high-tech kaiju weapon.