"Happy birthday, Godzilla!" Mothra exclaimed as she flapped her big butterfly wings in front of Godzilla, who was resting at Monster Island on the beach, looking at the salty sea towards the western direction, with the sun slowly rising in the east.
"What's so happy about it?" Godzilla remarked as he had his arms wrapped around the back of his head.
Mothra murmured as she kept on flapping her wings. "Aren't you happy that you manage to last this long, Big G?"
"Well, possibly. But, I had one hell of a weird birthday last year..." Godzilla remarked as he had his arms folded together.
Godzilla then triggered a flashback as he was at Tokyo, destroying it as he usually would during the night, when suddenly King Ghidorah popped up out of nowhere, having two swords in two of his heads, with his middle head wearing a top hat as he began singing. Godzilla blasted his radioactive breath at Ghidorah, knocking him down. Godzilla then grabbed the Tokyo Tower and used it as a baseball bat, whacking Ghidorah high into the night sky as he then set the rest of Tokyo on fire.
This would not be allowed to stand, as Rodan flew over Godzilla, flapping his big wings that caused hurricane like winds to cause several buildings to break apart, with Godzilla shielding himself as he then was attacked by rainbow confetti, glancing behind him to see that Megalon and Gigan were chucking confetti at him. Godzilla was confused, being punched in the face by MechaGodzilla, who then grabbed Godzilla by the tail and swinging him around, chucking him into one of the headquarters, causing it to collapse on him. Godzilla groaned, rubbing his head with his left hand as he was then pied in the face by a vanilla cake from MechaGodzilla, who then used his Absolute Zero cannon, freezing Godzilla. Megalon then performed a body slam on the frozen Godzilla, breaking the King Of The Monsters into pieces, with the ice melting as Godzilla's scattered body parts growing into small, miniature Godzillas, who had the same durability as the giant regular Godzilla, but the advantage of being much faster and more numerous, causing not only damage to the city, but attacking MechaGodzilla, Gigan, and Megalon, with Hedorah flying around the Tokyo Bay, polluting the air with his poisonous gas.
"...Huh. I guess that was a pretty weird birthday." Mothra remarked as she kept flapping her wings, the flashback having ended as the scene returned to Monster Island. "So you're having it easy tonight?"
"Yes. And I'm resting up because I know some crazy shit is going to go down tonight." Godzilla remarked as he closed his eyes.
Mothra shrugged, giving Godzilla a kiss on the head as she headed back inland, with Godzilla continuing to enjoy the sea breeze as morning was approaching Monster Island.