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- serebii.net fireredleafgreen/gyms.shtml
- pokemondungeon.com pokemon-firered-and-leafgreen-…
- wikihow.com How to Beat the Gym Leaders in Pokémon Fire Red: 10 Steps
- bulbapedia.bulbagarden.net wiki/Gym_Leader
- http://psypokes.com frlg/gymelites.php
- thedailyjuice.net pokemon-firered-leafgreen-gym-…
- pokemon.fandom.com wiki/Gym_Leader
- smogon.com ingame/guides/adv_frlg_ingametiers
- strategywiki.org wiki/Pokémon_FireRed_and_…
- youtube.com watch
- ranker.com list/all-pokemon-gym-leaders/ranker-…
- nuzlocke.app guides/fire-red