Gym Leaders

Gym Leaders are tough trainers that are required to progress through the game, gyms increase in difficulty as you progress and each gym leader will reward a badge upon defeat. Once you have beaten all 8 Gym Leaders, they can all be re-battled at Elegant Valley along with Johto Gym Leaders.

Pewter City Gym 

Gym Leader: Brock

Specialty: Rock Type Pokemon

Badge: Boulder Badge

Cerulean City Gym

Gym Leader: Misty

Specialty: Water Type Pokemon

Badge: Cascade Badge

Reward: Level 10-20 Togepi

Vermilion City Gym

Gym Leader: Lt.Surge

Specialty: Electric Type Pokemon

Badge: Thunder Badge

Note: This is a often missed Gym Leader. Once you get to Vermilion City Poke Center, go all the way down until you see the giant yellow-top building, and you will see the GYM.

Celadon City Gym

Gym Leader: Erika

Specialty: Grass Type Pokemon

Badge: Rainbow Badge

Fuchsia City Gym

Gym Leader: Koga

Specialty: Poison Type Pokemon

Badge: Soul Badge

Koga's Pokemon:

1. Weezing Lvl. 47
2. Venomoth Lvl. 47
3. Arbok Lvl. 50
4. Muk Lvl. 53
5. Gengar Lvl. 57

Saffron City Gym

Gym Leader: Sabrina

Specialty: Psychic Type Pokemon

Badge: Marsh Badge

Sabrina's Pokemon:

1. Mr. Mime Lvl. 55
2. Kadabra Lvl. 55
3. Hypno Lvl. 57
4. Venomoth Lvl. 59
5. Haunter Lvl. 59
6. Alakazam Lvl. 65

Cinnabar Volcano Gym

Gym

Gym Leader: Blaine

Specialty: Fire Type Pokemon

Badge: Fire Badge

1. Ninetales Lvl. 66
2. Flareon Lvl. 67
3. Charizard Lvl. 70
4. Magmar Lvl. 71
5. Arcanine Lvl. 73

Viridian City Gym

Gym Leader: Giovanni

Specialty: Ground Type Pokemon

Badge: Earth Badge

Use level 85 and under pokemon to stop him from copying your pokemon. Mewtwo will be his final Pokemon.