Cero Island (Japanese: セロアイランド Cero Island) is an animated series-exclusive location. Located in the distant seas, it was featured in Getting More Than You Battled For!.

Cero Island
セロアイランド Cero Island

Cero Island
Region Unknown
Debut Getting More Than You Battled For!

Ash and Goh visited Cero Island in search of Mew and traveled there by boat. While exploring the jungle, they encountered a group of Mankey, and Goh caught one of them. This enraged the other Mankey, leading them to chase Ash and Goh into a marsh where Ash nearly sank, only to be saved by Goh's Heracross.

Using Caterpie's String Shot, Ash and Goh started to climb over the Marsh, only to be ambushed by a Kingler and Krabby. Goh managed to catch Krabby as they continued along their journey. As Ash and Goh started to cross a river by jumping on the stones, a Gyarados attacked them but Goh was unable to catch it. After falling into the river, Ash and Goh ended up going over a waterfall.

After coming round, Ash and Goh encountered a group of Pokémon before meeting their protective guardian, Mewtwo. Ash and Goh attempted to battle Mewtwo with Pikachu, Lucario, and Cinderace but they weren't able to do any damage. Eventually Mewtwo decided to leave the Island and remain in hiding along with the Pokémon it had rescued from people, before teleporting Ash and Goh back to Cerise Laboratory.

Cero Island is uninhabited by people. Its steep cliffs make it impassable to most, while its dense jungles and rivers are home to many wild Pokémon.

Pokémon seen on Cero Island


Pidgey

Spearow

Butterfree

Mankey (multiple)

Poliwag

Kingler

Gyarados

Caught Pokémon


Goh's Mankey

Goh's Krabby

Previously resided on Cero Island


Mewtwo

Mareep (×2)

Mudbray

Patrat

Buneary

Skiddo

Skitty

Names

Language Name Origin
Japanese セロアイランド Cero Island From cero (Spanish for zero)
English Cero Island Same as Japanese
Catalan Illa Zero From zero
Italian Isola Zerum From zero
Czech Ostrov Cero Same as English
Finnish Cero-saari Same as English
Polish Wyspa Cero Same as English
Brazilian Portuguese Ilha Cero Same as English
Other animated series-exclusive locations
Region unknown: Amethio's mansionBloom CanyonBrindille TownCero IslandExplorers HQForest of OkoyaFula CityGanga TownGenesect's home
Inua TownLapidarian HighlandsLapras SeaLaquaLaxton FarmMarnya's houseMilyfa TownMocha TownMount Pericarp
Mount TenseiNorth PolePericarp TownPigton TownPokémon Nurse SchoolRaizen MountainsSamiyaSento Cherry Town
Slowpoke IslandSteelbound TownTeacup TownTonari Town
Extraterrestrial locations: Millennium Comet
Inter-dimensional locations: Deoxys's unnamed worldGhost WorldMirror WorldPoipole's worldReverse WorldUnown Dimension
Animated series-exclusive location templates
KantoOrange IslandsJohtoHoennSinnohUnovaDecolore IslandsKalosAlolaGalarPaldeaKitakamiOther
This article is part of both Project Anime and Project Locations, Bulbapedia projects that, together, aim to write comprehensive articles on locations in the animated series.