A key part of your journey throughout Pokémon FireRed and LeafGreen will be taking on the Kanto region’s eight gym leaders.

Each gym leader specialises in one particular Pokémon type, so it’s important to plan your team and strategy accordingly.

Gym Leaders
Gym #1 – Brock
Gym #2 – Misty
Gym #3 – Lt. Surge
Gym #4 – Erika
Gym #5 – Koga
Gym #6 – Sabrina
Gym #7 – Blaine
Gym #8 – Giovanni

Gym #1 – Brock

Brock, Pewter City’s gym leader, specialises in using rock-type Pokémon, making water, grass and fighting-type moves super-effective against his Pokémon.

Pokémon	Type	Abilities	Moves
#074 – Geodude Level 12	Rock/Ground	・Rock Head ・Sturdy ・Sand Veil	・Tackle ・Defense Curl
#095 – Onix level 14	Rock/Ground	・Rock Head ・Sturdy ・Weak Armor	・Bind ・Harden ・Rock Tomb ・Tackle

Gym #2 – Misty

The gym leader of Cerulean City, Misty, has a team of water-type Pokémon, making grass and electric-type moves handy.

Pokémon	Type	Abilities	Moves
#120 – Staryu Level 18	Water	・Illuminate ・Natural Cure ・Analytic	・Harden ・Recover ・Tackle ・Water Pulse
#121 – Starmie Level 21	Water/Psychic	・Illuminate ・Natural Cure ・Analytic	・Harden ・Recover ・Tackle ・Water Pulse

Gym #3 – Lt. Surge

The Vermillion City gym leader utilises electric-type Pokémon. Players should make use of ground-type Pokémon and moves for super-effective damage.

Pokémon	Type	Abilities	Moves
#100 – Voltorb Level 21	Electric	・Soundproof ・Static ・Aftermath	・Screech ・Shock Wave ・Sonic Boom ・Tackle
#025 – Pikachu Level 18	Electric	・Static ・Lightning Rod	・Double Team ・Quick Attack ・Shock Wave ・Thunder Wave
#026 – Raichu Level 24	Electric	・Static ・Lightning Rod	・Double Team ・Quick Attack ・Shock Wave ・Thunder Wave

Gym #4 – Erika

Erika, leader of the Celadon City gym, has a team featuring grass-type Pokémon. Flying, bug, poison, fire and ice-type moves will hit her Tangela for super-effective damage, while flying, fire, psychic and ice-type moves and Pokémon will hit Victreebel and Vileplume for super-effective damage.

Pokémon	Type	Abilities	Moves
#071 – Victreebel Level 29	Grass/Poison	・Chlorophyll ・Gluttony	・Acid ・Giga Drain ・Poison Powder ・Stun Spore
#114 – Tangela Level 24	Grass	・Chlorophyll ・Leaf Guard ・Regenerator	・Constrict ・Giga Drain ・Ingrain ・Poison Powder
#045 – Vileplume Level 29	Grass/Poison	・Chlorophyll ・Effect Spore	・Acid ・Giga Drain ・Sleep Powder ・Stun Spore

Gym #5 – Koga

Koga is the leader of the Fuchsia City gym, taking on the player with poison-type Pokémon. Use ground and psychic-type Pokémon and moves for super-effective damage!

Pokémon	Type	Abilities	Moves
#109 – Koffing Level 37	Poison	・Levitate ・Neutralizing Gas ・Stench	・Self-Destruct ・Sludge ・Smokescreen ・Toxic
#089 – Muk Level 39	Poison	・Stench ・Sticky Hold ・Poison Touch	・Acid Armor ・Minimize ・Sludge ・Toxic
#109 – Koffing Level 37	Poison	・Levitate ・Neutralizing Gas ・Stench	・Self-Destruct ・Sludge ・Smokescreen ・Toxic
#110 – Weezing Level 43	Poison	・Levitate ・Neutralizing Gas ・Stench	・Sludge ・Smokescreen ・Tackle ・Toxic

Gym #6 – Sabrina

As the psychic-type gym leader of Saffron City, Sabrina’s Kadabra, Mr. Mime and Alakazam are weak against bug, ghost and dark-types, while her Venomoth is best handled by flying, rock, fire and, ironically, psychic types.

Pokémon	Type	Abilities	Moves
#064 – Kadabra Level 38	Psychic	・Synchronize ・Inner Focus ・Magic Guard	・Calm Mind ・Future Sight ・Psybeam ・Reflect
#122 – Mr. Mime Level 37	Psychic	・Soundproof ・Filter ・Technician	・Barrier ・Baton Pass ・Calm Mind ・Psybeam
#049 – Venomoth Level 38	Bug/Poison	・Shield Dust ・Tinted Lens ・Wonder Skin	・Gust ・Leech Life ・Psybeam ・Supersonic
#065 – Alakazam Level 43	Psychic	・Synchronize ・Inner Focus ・Magic Guard	・Calm Mind ・Future Sight ・Psychic ・Recover

Gym #7 – Blaine

The leader of the Cinnabar Island gym, Blaine’s party are specifically weak to ground, rock and water-type Pokémon.

Pokémon	Type	Abilities	Moves
#058 – Growlithe Level 42	Fire	・Intimidate ・Flash Fire ・Justified	・Bite ・Fire Blast ・Roar ・Take Down
#077 – Ponyta Level 40	Fire	・Run Away ・Flash Fire ・Flame Body	・Bounce ・Fire Blast ・Fire Spin ・Stomp
#078 – Rapidash Level 42	Fire	・Run Away ・Flash Fire ・Flame Body	・Bounce ・Fire Blast ・Fire Spin ・Stomp
#059 – Arcanine Level 47	Fire	・Intimidate ・Flash Fire ・Justified	・Bite ・Fire Blast ・Roar ・Take Down

Gym #8 – Giovanni

The eighth and final gym leader, the boss of Team Rocket himself, Giovanni. His Rhyhorns can be hit for 4x super-effective damage using water and grass-type moves, with fighting, ground, steel and ice-types hitting for the standard 2x super-effective damage.

Dugtrio can be handled with water, grass and ice-types, whereas Nidoking and Nidoqueen are weak to ground, water, psychic and ice-types.

Pokémon	Type	Abilities	Moves
#111 – Rhyhorn Level 45	Ground/Rock	・Lightning Rod ・Rock Head ・Reckless	・Earthquake ・Rock Blast ・Scary Face ・Take Down
#051 – Dugtrio Level 42	Ground	・Sand Veil ・Arena Trap ・Sand Force	・Earthquake ・Mud-Slap ・Sand Tomb ・Slash
#031 – Nidoqueen Level 44	Poison/Ground	・Poison Point ・Rivalry ・Sheer Force	・Body Slam ・Double Kick ・Earthquake ・Poison Sting
#034 – Nidoking Level 45	Poison/Ground	・Poison Point ・Rivalry ・Sheer Force	・Double Kick ・Earthquake ・Poison Sting ・Thrash
#111 – Rhyhorn Level 50	Ground/Rock	・Lightning Rod ・Rock Head ・Reckless	・Earthquake ・Rock Blast ・Scary Face ・Take Down