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Pokémon Red & Blue walkthrough · Part 2 of 12

Part 2: Beat Brock — Pewter City Gym, badge 1

Beat Brock — Pewter City Gym, badge 1 opens 17 areas. There are 74 trainers standing in them. The fights at this checkpoint are Rival Blue (Bulbasaur), Rival Blue (Charmander), Rival Blue (Squirtle), and 1 more.

Where to go

  1. Route 3

    Wild: Pidgey 45% · Lv 6-8, Spearow 45% · Lv 5-8, Jigglypuff 10% · Lv 3-7, Magikarp Lv 5

    Trainers: Bug Catcher Lv 10, Bug Catcher #2 Lv 9, Bug Catcher #3 Lv 11, Lass Lv 9, Lass #2 Lv 10, Lass #3 Lv 14 +2 more

  2. Route 4

    Wild: Rattata 40% · Lv 8-12, Spearow 35% · Lv 8-12, Ekans 25% · Lv 6-12, Sandshrew 25% · Lv 6-12 +1 more

    Trainers: Lass Lv 31

    Pick up: TM04 Whirlwind

  3. Route 5

    Wild: Pidgey 40% · Lv 13-16, Bellsprout 35% · Lv 13-16, Oddish 35% · Lv 13-16, Mankey 25% · Lv 10-16 +1 more

  4. Route 6

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Krabby 50% · Lv 15, Poliwag 50% · Lv 10 +6 more

    Trainers: Bug Catcher Lv 16, Bug Catcher #2 Lv 20, Jr Trainer F Lv 16, Jr Trainer F #2 Lv 16, Jr Trainer M Lv 20, Jr Trainer M #2 Lv 16

  5. Route 11

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Krabby 50% · Lv 15, Poliwag 50% · Lv 10 +6 more

    Trainers: Engineer Lv 21, Engineer #2 Lv 18, Gambler Lv 18, Gambler #2 Lv 18, Gambler #3 Lv 18, Gambler #4 Lv 18 +4 more

  6. Route 23

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Poliwag 50% · Lv 10, Ditto 35% · Lv 33-43 +10 more

  7. Route 24

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Poliwag 50% · Lv 10, Krabby 33% · Lv 15 +9 more

    Trainers: Bug Catcher Lv 14, Jr Trainer M Lv 14, Jr Trainer M #2 Lv 18, Lass Lv 16, Lass #2 Lv 14, Rocket Lv 15 +1 more

    Pick up: TM45 Thunder Wave

  8. Route 25

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Poliwag 50% · Lv 10, Krabby 33% · Lv 15 +9 more

    Trainers: Hiker Lv 15, Hiker #2 Lv 13, Hiker #3 Lv 17, Lass Lv 15, Lass #2 Lv 13, Youngster Lv 15 +2 more

    Pick up: TM19 Seismic Toss

  9. Mt. Moon

    Wild: Zubat 79% · Lv 6-11, Geodude 30% · Lv 9-10, Paras 15% · Lv 10-12, Clefairy 6% · Lv 10-12

    Trainers: Bug Catcher Lv 11, Bug Catcher #2 Lv 10, Hiker Lv 10, Lass Lv 11, Lass #2 Lv 14, Rocket Lv 13 +6 more

    Pick up: TM01 Mega Punch

  10. Diglett's Cave

    Wild: Diglett 95% · Lv 15-22, Dugtrio 5% · Lv 29-31

  11. Cerulean City

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Poliwag 50% · Lv 10, Krabby 33% · Lv 15 +2 more

    Trainers: ★ Rival Blue (Bulbasaur) Lv 18, ★ Rival Blue (Charmander) Lv 18, ★ Rival Blue (Squirtle) Lv 18, Rocket Lv 17

    Pick up: TM11 Bubble Beam, TM28 Dig

  12. Vermilion City

    Wild: Magikarp 100% · Lv 5, Goldeen 50% · Lv 10, Krabby 50% · Lv 15, Poliwag 50% · Lv 10 +2 more

    Pick up: TM24 Thunderbolt

  13. S.S. Anne 1F Rooms

    Trainers: Gentleman Lv 18, Gentleman #2 Lv 19, Lass Lv 18, Youngster Lv 21

  14. S.S. Anne 2F Rooms

    Trainers: Fisher Lv 17, Gentleman Lv 23, Gentleman #2 Lv 17, Lass Lv 18

  15. S.S. Anne B1F Rooms

    Trainers: Fisher Lv 17, Sailor Lv 21, Sailor #2 Lv 17, Sailor #3 Lv 18, Sailor #4 Lv 17, Sailor #5 Lv 20

  16. S.S. Anne Bow

    Trainers: Sailor Lv 18, Sailor #2 Lv 17

  17. Pewter City Gym

    Trainers: ★ Brock Lv 14, Jr Trainer M Lv 11

★ Rival Blue (Bulbasaur) — Cerulean City

4 Pokémon · level cap Lv 18 (every cap) · Rival Blue (Bulbasaur)’s own page

PokémonAbility & itemMovesBase stats
PidgeottoPidgeotto
Lv 18
NormalFlying
Gust Sand Attack Quick Attack
HP63Attack60Defense55Sp. Atk50Sp. Def50Speed71Total349
AbraAbra
Lv 15
Psychic
Teleport
HP25Attack20Defense15Sp. Atk105Sp. Def55Speed90Total310
RattataRattata
Lv 15
Normal
Tackle Tail Whip Quick Attack Hyper Fang
HP30Attack56Defense35Sp. Atk25Sp. Def35Speed72Total253
BulbasaurBulbasaur
Lv 17
GrassPoison
Tackle Growl Leech Seed Vine Whip
HP45Attack49Defense49Sp. Atk65Sp. Def65Speed45Total318

★ Rival Blue (Charmander) — Cerulean City

4 Pokémon · level cap Lv 18 (every cap) · Rival Blue (Charmander)’s own page

PokémonAbility & itemMovesBase stats
PidgeottoPidgeotto
Lv 18
NormalFlying
Gust Sand Attack Quick Attack
HP63Attack60Defense55Sp. Atk50Sp. Def50Speed71Total349
AbraAbra
Lv 15
Psychic
Teleport
HP25Attack20Defense15Sp. Atk105Sp. Def55Speed90Total310
RattataRattata
Lv 15
Normal
Tackle Tail Whip Quick Attack Hyper Fang
HP30Attack56Defense35Sp. Atk25Sp. Def35Speed72Total253
CharmanderCharmander
Lv 17
Fire
Scratch Growl Ember Leer
HP39Attack52Defense43Sp. Atk60Sp. Def50Speed65Total309

★ Rival Blue (Squirtle) — Cerulean City

4 Pokémon · level cap Lv 18 (every cap) · Rival Blue (Squirtle)’s own page

PokémonAbility & itemMovesBase stats
PidgeottoPidgeotto
Lv 18
NormalFlying
Gust Sand Attack Quick Attack
HP63Attack60Defense55Sp. Atk50Sp. Def50Speed71Total349
AbraAbra
Lv 15
Psychic
Teleport
HP25Attack20Defense15Sp. Atk105Sp. Def55Speed90Total310
RattataRattata
Lv 15
Normal
Tackle Tail Whip Quick Attack Hyper Fang
HP30Attack56Defense35Sp. Atk25Sp. Def35Speed72Total253
SquirtleSquirtle
Lv 17
Water
Tackle Tail Whip Bubble Water Gun
HP44Attack48Defense65Sp. Atk50Sp. Def64Speed43Total314

Also fought around here

Brock

Everything you can have caught by this checkpoint · Open the interactive guide

It also doesn't say when Kanto Underground Path opens up, so it is in no part above; it has its own route page.