1st badge: Brock Location: Pewter City Pokémon: Geodude [Lvl 12] Onix [Lvl 14]

2nd badge: Misty Location: Cerulean City Pokémon: Staryu [Lvl 18] Starmie [Lvl 21]

3rd badge: Lt. Surge Location: Vermilion City Pokémon: Voltorb [Lvl 21] Pikachu [Lvl 18] Raichu [Lvl 24]

4th badge: Erika Location: Game Corner Pokémon: Victreebel [Lvl 29] Tangela [Lvl 24] Vileplume [Lvl 29]

Rewards: Thunder Badge TM 24

Rewards: Rainbow Badge TM 21

5th badge: Sabrina Location: Saffron City Pokémon: Kadabra [Lvl 38] Mr. Mime [Lvl 37] Venomoth [Lvl 38] Alakazam [Lvl 43]

6th badge: Koga Location: Fuschia City Pokémon: Koffing [Lvl 37] Muk [Lvl 30] Koffing [Lvl 37] Weezing [Lvl 43]

Rewards: Marsh Badge TM 46

Rewards: Soul Badge TM 6

7th badge: Blaine Location: Cinnabar Island Pokémon: Growlithe [Lvl 42] Ponyta [Lvl 40] Rapidash [Lvl 42] Arcanine [Lvl 43]

8th badge: Giovanni Location: Viridian City Pokémon: Rhyhorn [Lvl 45] Dugtrio [Lvl 42] Nidoqueen [Lvl 43] Nidoking [Lvl 45] Rhydon [Lvl 50]

Rewards: Volcano Badge TM 38

Rewards: Earth Badge TM 27