After being mind-controlled by the Kilaaks, Gorosaurus attacked Paris, burrowing through the ground. He surfaced almost exactly next to the Arc de Triomphe, and it collapsed as he climbed out of the ground.
Baragon surfaced in Paris underneath the Arc de Triomphe, destroying it. The Counter-Kaiju Reaction Forces deployed Kiryu to stop Baragon. After a fierce battle, Kiryu subdued Baragon and airlifted him to the Monster Islands.
- Originally, Baragon was to attack Paris and destroy the Arc de Triomphe in Destroy All Monsters, but his suit was too badly damaged from overuse as other kaiju in Tsuburaya Productions' Ultra series and he was replaced with Gorosaurus. As a result, Gorosaurus gains Baragon's burrowing ability and is even referred to as "Baragon" in that scene of the film. The fact that Baragon himself destroys the Arc de Triomphe in Godzilla: Rulers of Earth is likely a nod to this.