Godzilla is a famous Japanese movie monster and the main character of his own franchise. He has been referenced and appears many times throughout the Dr. Slump series.
Godzilla is first mentioned in one of Akira Toriyama's one-shot Wonder Island 2. Gyaosu, Gala and Pagos play war between Ultraman and Godzilla while waiting for the new inspector they summoned at their police office, with Pagos disguised as Godzilla.
The Birth of Arale
Main article: Volume 1: The Birth of Arale
He is first appears on the chapter cover of "Dr. Monster". He appears on the cover of the "Everyman's Monster Encyclopedia Deluxe" that Dr. Monster wanted. Arale gives Professor Monster a lizard and says it is a baby Godzilla, the same way he did to Arale with Gamera. In that chapter's anime adaptation The Mysterious Dr. Monster?!, Godzilla and Gamera both appear in a daydream by Dr. Monster.
The Happy Doctor
Main article: Volume 5: Monsters' Night
In "The Great Arale-Eye Caper: Part 1", he appears in along with King Ghidorah and Gamera as they go to the Norimaki Residence to play with Gatchan. Godzilla is seen among Arale's classmates in "The Big-City Student".
Penguin Grand Prix
The Adventures of Tongpoo
- Breathes an Atomic Ray
- The cover of the guidebook Dr. Monster wanted stated that Godzilla had a lover at one point.