Gorilla is a gorilla that both Gatchan #1 and #2 rescued from a hunter.
The gorilla was brought back to the Norimaki Residence where he was bandaged up. He befriended the family and rivaled Senbei over bananas. One day, Midori Norimaki was ironing Senbei Norimaki's boxers when she left the gorilla played with the iron and accidently got an iron mark on his head. When his injuries became better, he left the house at night and was missing for awhile. When he came back, he was a huge ape and give the Norimaki family a huge amount of bananas to repay them for their kindness and left.
- When Arale Norimaki draws Senbei's face for an art class project, she draws a gorilla's face instead.
- Gorillas also appears in the chapters "Zippity-Doo Doctor", "Penguin Village Dom-Dom-Dom!", and "Stone Age Ho-Yo-Yo".
- A generic Gorilla that looks just like him appears in the table of contents in the first volume of the Dragon Ball manga.