Celadon City is located in Kanto.
- Mewtwo is developed by Blaine of Team Rocket
- Red and Green team up and save Mew from Team Rocket
- Blue wins his Porygon at the Game Corner
- Red captures Eevee
- Red wins the Rainbow Badge
- Erika leads the residents of Celadon to block one of Saffron City's exits, helping trap Team Rocket
Erika's gym is located in Celadon City. The Game Corner is also located here. The lower floor of the Game Corner is a secret of laboratory of Team Rocket, where Mewtwo is developed.
Celadon City is fairly big.