Part 4: Thunder Badge — Rock Tunnel to Celadon City
Routes 7 to 10, Rock Tunnel, Lavender Town, Celadon City and the Rocket Hideout, up to Erika in the Celadon City Gym. Your Pokémon stop gaining experience above Level 29 until the next badge.
Thunder Badge — Rock Tunnel to Celadon City opens 16 areas. There are 65 trainers standing in them. The fights at this checkpoint are Erika, Boss Giovanni, Erika (rematch).
Where to go
Rock Tunnel 1F
Wild: Geodude 35% · Lv 15-17, Zubat 20% · Lv 15, Mankey 15% · Lv 16-17, Machop 14% · Lv 16-17 +2 more
Trainers: Hiker Lenny Lv 19, Picnicker Ariana Lv 19, Hiker Oliver Lv 20, Picnicker Dana Lv 20, Picnicker Leah Lv 22, Pokemaniac Ashton Lv 23 +1 more
Pick up: Black Augurite, Bottle Cap, Lure, Pearl
Rock Tunnel B1F
Wild: Geodude 95% · Lv 5-30, Zubat 30% · Lv 15-16, Mankey 15% · Lv 16-17, Machop 10% · Lv 17 +3 more
Trainers: Hiker Eric Lv 20, Pokemaniac Cooper Lv 20, Picnicker Sofia Lv 21, Picnicker Martha Lv 22, Pokemaniac Steve Lv 22, Hiker Allen Lv 25 +2 more
Pick up: TM165 Rock Slide, Max Ether, Revive, Smooth Rock
Move tutor: Rock Slide
Route 7
Wild: Meowth 40% · Lv 17-20, Pidgey 20% · Lv 19, Bellsprout 10% · Lv 19-22, Oddish 10% · Lv 19-22 +2 more
Pick up: Sitrus Berry (hidden)
Route 8
Wild: Meowth 30% · Lv 18-20, Pidgey 30% · Lv 18-20, Growlithe 10% · Lv 15-18, Sandshrew 10% · Lv 17-19 +2 more
Trainers: Lass Megan Lv 19, Super Nerd Aidan Lv 20, Lass Julia Lv 22, Super Nerd Glenn Lv 22, Twins Eli & Anne Lv 22, Biker Ricardo Lv 23 +6 more
Pick up: Leppa Berry (hidden), Lum Berry (hidden), Rawst Berry (hidden)
Route 9
Wild: Rattata 38% · Lv 14-17, Spearow 35% · Lv 13-17, Ekans 15% · Lv 13-17, Sandshrew 11% · Lv 15-17
Trainers: Picnicker Alicia Lv 18, Bug Catcher Brent Lv 19, Camper Drew Lv 19, Bug Catcher Conner Lv 20, Hiker Brice Lv 20, Hiker Jeremy Lv 20 +3 more
Pick up: TM40 Aerial Ace, Burn Heal, Chesto Berry (hidden), Ether (hidden), Rare Candy (hidden)
Route 10
Wild: Magikarp 100% · Lv 5, Tentacool 100% · Lv 5-40, Horsea 80% · Lv 15-25, Voltorb 38% · Lv 14-17 +8 more
Trainers: Hiker Trent Lv 19, Picnicker Heidi Lv 20, Pokemaniac Herman Lv 20, Hiker Clark Lv 21, Picnicker Carol Lv 21, Pokemaniac Mark Lv 29
Pick up: Bottle Cap (hidden), Cheri Berry (hidden), Lantern, Max Ether (hidden), Persim Berry (hidden), Sitrus Berry (hidden)
Celadon City
Wild: Magikarp 100% · Lv 5, Psyduck 60% · Lv 5-40, Slowpoke 40% · Lv 5-40, Grimer 1% · Lv 30-40
Pick up: TM16 Light Screen, TM19 Giga Drain, TM20 Safeguard, TM33 Reflect, TM42 Facade, TM159 Soft-Boiled, TM162 Counter, Hedge Shears +2 more
Move tutor: Soft-Boiled
Celadon City Condominiums Roof Room
Wild: Eevee Lv 25
Pick up: TM42 Facade
Celadon City Game Corner Prize Room
Wild: Dratini Lv 24, Eevee Lv 25, Jynx Lv 20, Mr. Mime Lv 20 +3 more
Pick up: Assault Vest (shop), Bright Powder (shop), Choice Band (shop), Choice Scarf (shop), Choice Specs (shop), Covert Cloak (shop), Eject Pack (shop), Expert Belt (shop) +14 more
Celadon City Game Corner
Trainers: Team Rocket Grunt Lv 20
Rocket Hideout B1F
Trainers: Team Rocket Grunt (3) Lv 20, Team Rocket Grunt (4) Lv 20, Team Rocket Grunt (1) Lv 21, Team Rocket Grunt (2) Lv 21, Team Rocket Grunt (5) Lv 22
Rocket Hideout B2F
Trainers: Team Rocket Grunt Lv 20
Rocket Hideout B3F
Trainers: Team Rocket Grunt (1) Lv 20, Team Rocket Grunt (2) Lv 21
Celadon City Gym
Trainers: Beauty Bridget Lv 21, Cooltrainer Mary Lv 22, Lass Kay Lv 23, Lass Lisa Lv 23, Beauty Lori Lv 24, Beauty Tamia Lv 24 +3 more
Rocket Hideout B4F
Trainers: Team Rocket Grunt (1) Lv 21, Team Rocket Grunt (2) Lv 23, Team Rocket Grunt (3) Lv 23, ★ Boss Giovanni Lv 34
Celadon City House 1
Trainers: Team Rocket Admin Lv 30
★ Erika — Celadon City Gym
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Tangela Lv 29 Grass | Ability Chlorophyll Held item Eviolite Bold nature · EVs 120 HP / 160 Def / 120 SpA / 100 SpD / 8 Spe | Grassy Terrain Ancient Power Leech Seed Giga Drain | HP65Attack55Defense115Sp. Atk100Sp. Def40Speed60Total435 |
 | Leafeon Lv 29 Grass | Ability Chlorophyll Held item Miracle Seed Impish nature · EVs 4 HP / 252 Atk / 252 Spe | Seed Bomb Rock Smash X-Scissor Yawn | HP65Attack110Defense130Sp. Atk60Sp. Def65Speed95Total525 |
 | Bellossom Lv 29 Grass | Ability Chlorophyll Held item Big Root Calm nature · EVs 120 HP / 120 Def / 200 SpA / 60 SpD / 8 Spe | Strength Sap Leech Seed Giga Drain Acid Spray | HP75Attack80Defense95Sp. Atk90Sp. Def100Speed50Total490 |
★ Boss Giovanni — Rocket Hideout B4F
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Tauros Lv 34 Normal | Ability Intimidate Held item White Herb Adamant nature · EVs 4 HP / 252 Atk / 252 Spe | Close Combat Zen Headbutt Wild Charge Iron Head | HP75Attack100Defense95Sp. Atk40Sp. Def70Speed110Total490 |
 | Beedrill Lv 34 BugPoison | Ability Sniper Held item Scope Lens Adamant nature · EVs 96 HP / 252 Atk / 160 Spe | Focus Energy Poison Jab Aerial Ace X-Scissor | HP65Attack90Defense40Sp. Atk45Sp. Def80Speed75Total395 |
 | Persian Lv 34 Normal | Ability Technician Held item Black Glasses Jolly nature · EVs 132 HP / 252 Atk / 124 Spe | Power Gem Foul Play Fake Out Thief | HP65Attack70Defense60Sp. Atk65Sp. Def65Speed115Total440 |
 | Cloyster Lv 34 WaterIce | Ability Skill Link Held item Leftovers Impish nature · EVs 152 HP / 156 Atk / 200 Def | Aqua Ring Icicle Spear Liquidation Snowscape | HP50Attack95Defense180Sp. Atk85Sp. Def45Speed70Total525 |
 | Kangaskhan Lv 34 Normal | Ability Scrappy Held item Toxic Orb Adamant nature · EVs 120 HP / 252 Atk / 8 Def / 8 SpD / 120 Spe | Sucker Punch Drain Punch Fake Out Facade | HP105Attack95Defense80Sp. Atk40Sp. Def80Speed90Total490 |
 | Nidoqueen Lv 34 PoisonGround | Ability Sheer Force Held item Life Orb Calm nature · EVs 160 HP / 252 SpA / 16 SpD / 80 Spe | Flamethrower Earth Power Thunderbolt Ice Beam | HP90Attack92Defense87Sp. Atk75Sp. Def85Speed76Total505 |
★ Erika (rematch) — Celadon City Gym
| Pokémon | Ability & item | Moves | Base stats | |
|---|---|---|---|---|
 | Exeggutor Lv 70 GrassPsychic | Ability Harvest Held item Sitrus Berry Quiet nature · EVs 252 HP / 252 SpA / 6 SpD | Sludge Bomb Energy Ball Trick Room Psychic | HP95Attack95Defense85Sp. Atk125Sp. Def75Speed55Total530 |
 | Ludicolo Lv 70 WaterGrass | Ability Rain Dish Held item Leftovers Calm nature · EVs 252 HP / 130 Def / 128 SpA | Weather Ball Rain Dance Giga Drain Fake Out | HP80Attack70Defense70Sp. Atk90Sp. Def100Speed70Total480 |
 | Breloom Lv 70 GrassFighting | Ability Poison Heal Held item Toxic Orb Brave nature · EVs 252 HP / 252 Atk / 6 Def | Drain Punch Seed Bomb Facade Spore | HP60Attack130Defense80Sp. Atk60Sp. Def60Speed70Total460 |
 | Tangrowth Lv 70 Grass | Ability Regenerator Held item Choice Band Brave nature · EVs 252 HP / 252 Atk / 6 Def | Stomping Tantrum Poison Jab Power Whip Rock Slide | HP100Attack100Defense125Sp. Atk110Sp. Def50Speed50Total535 |