Altering Cave - Pokemon Fire Red and Leaf Green Guide - IGN

Found north of Sixth Island, this cave only have Zubats. However, if you have an E-reader connected to a gameboy advance using Japanese E-reader cards

Pokémon FireRed and LeafGreen Versions - Bulbapedia, the community

Seafoam Islands - Pokemon Fire Red and Leaf Green Guide - IGN

Route 2 - Pokemon Fire Red and Leaf Green Guide - IGN

Three Island - Pokemon Fire Red and Leaf Green Guide - IGN

Pokemon LeafGreen Version [Walkthroughs] - IGN

Route 2 - Pokemon Fire Red and Leaf Green Guide - IGN

Celadon City - Pokemon Fire Red and Leaf Green Guide - IGN

All Ominous Stake Locations - How to Open Shrines - Pokemon

Pokémon FireRed (GBA) - 1080p60 HD Walkthrough Part 59 - Outcast

PK3/WC3: Unreleased Altering Cave Pokémon - Unreleased/Beta PKM

Pokemon FireRed and LeafGreen :: Full Walkthrough

Pokemon FireRed and LeafGreen :: Full Walkthrough