In A Snow Day for Searching!, Goh encountered Cubone while visiting his family. It was surrounded by a group of Mankey, although Scorbunny gets involved in the battle, his bone is stolen by the Pokémon group. Sad at the loss of the item, Goh tried to console him, and soon after that Goh decided to use his Pokémon to find the missing bone. After meeting the Mankey again and seeing that they also lost the bone, another search began, where Goh's Butterfree found a Fearow who knew the location of the lost item. Towards the end of the day, Cubone, Goh, and Ash discovered that it was on the bottom of a lake and, thanks to Goh's Dewgong, they succeeded to recover it. Goh returned the bone to Cubone and, after meeting Goh's parents, the Pokémon allowed itself to be caught by him. At Goh's house, Cubone was seen on the lap of his Trainer and having fun with the other Pokémon in the apartment.
In Panic in the Park!, it was revealed that Cubone befriended Goh's Skwovet. The two called Golurk to stop the other Pokémon from fighting during a food shortage. When Golurk's seal fell off and it went berserk, Cubone helped put the seal back on. It then helped protect the Cascoon from the flood caused by Golurk's rampage, allowing them to evolve into Dustox.
Cubone is shown to become very upset when it loses its bone, as seen in A Snow Day for Searching! when it was taken by a group of Mankey. This caused it to cry out loud and only calmed down once its bone was retrieved. This caused Cubone to be thankful, as seen when it asked to join Goh's team after he helped retrieve it.
On November 6, 2020, as part of Pokémon GO's Animation Week 2020 event, which was based on Pokémon Journeys: The Series, several Pokémon based on those that Ash and Goh encountered in the anime appeared more frequently in the wild, in raids, from 7 km Eggs, and during surprise encounters, with Cubone appearing more frequently in the wild. The event ran from November 6, 2020, at 8:00 a.m., to November 12, 2020, at 10:00 p.m. local time.
For more information on this Pokémon's species, see Cubone.