Cerise Island is located in the sea south of Kanto.
- Red and Lt. Surge battle Bruno and win, Green and Sabrina battle Lorelei and win, and Blue and Koga battle Agatha and win
- Lance attempts to use the Amplifier to harness the power of the Kanto badges to awaken Lugia and eradicate humankind, but Yellow stops him
Cerise Island has an enormous volcano with boiling lava at its center, ideal for channeling the power of the Kanto gym badges. It has a series of tunnels and caves, some of them functioning like one-way mirrors.