Goh first encountered Cubone in his home region, Kanto. It was being bullied by a group of Mankey that had stolen its bone. Scorbunny quickly attacked the Mankey without orders from Goh, causing them to run off. After seeing how upset Cubone was, Goh decided to use his Scorbunny, Scyther, Beedrill, Taillow, and Butterfree to help locate its lost bone.
After discovering that his lost bone had been tossed into a lake, Goh used his Dewgong to help retrieve it. When Goh introduced his Pokémon partners to his family, Cubone presented himself as if he was one of Goh's Pokémon despite not being captured. Seeing as Cubone wished to join him, Goh decided to capture it with a Poké Ball.
During the food crisis at Cerise Laboratory, it was seen being friends with Goh's Skwovet. The two of them later called upon the help of Goh's Golurk, hoping that it would stop the fighting between Goh's Pokémon. Once Golurk's seal fell off, it worked together with Goh's Farfetch'd to help place it back on. It then joined the rest of Goh's Pokémon to protect Goh's Cascoon from the flood while they evolved.
During the aftermath of the food crisis, it was seen eating with the rest of Goh's Pokémon.
None of Cubone's moves are known.
At the Cerise Laboratory