Part 4: 3 badges — Insect (Burgh, Castelia)

Nimbasa City opens up — Fly: HM02, moved here from Driftveil. Strength: HM04

3 badges — Insect (Burgh, Castelia) opens 12 areas. There are 41 trainers standing in them. The fights at this checkpoint are Rival Cheren (with Snivy), Rival Cheren (with Oshawott), Rival Cheren (with Tepig), and 2 more.

Where to go

1. Route 4

   Wild: Clamperl 60% · Lv —, Frillish 60% · Lv —, Jellicent 60% · Lv —, Krabby 60% · Lv — +13 more

   Trainers: ★ Rival Cheren (with Snivy) Lv 33, ★ Rival Cheren (with Oshawott) Lv 33, ★ Rival Cheren (with Tepig) Lv 33, Backpacker Keane Lv 27, Worker Gus Lv 25, Backpacker Anna Lv 27 +9 more

2. Desert Resort — Entrance

   Wild: Sandile 20% · Lv —, Sandshrew 20% · Lv —, Baltoy 10% · Lv —, Cacnea 10% · Lv — +4 more

3. Desert Resort — Main

   Wild: Darumaka 20% · Lv —, Trapinch 20% · Lv —, Cacnea 10% · Lv —, Dwebble 10% · Lv — +7 more

4. Relic Castle — 1F

   Wild: Sandile 20% · Lv —, Sandshrew 20% · Lv —, Bronzor 10% · Lv —, Golett 10% · Lv — +4 more

5. Relic Castle — B1F

   Wild: Gastly 20% · Lv —, Yamask 20% · Lv —, Bronzor 10% · Lv —, Duskull 10% · Lv — +6 more

6. Relic Castle — B2F, B3F, B4F, B5F

   Wild: Cofagrigus 20% · Lv —, Krokorok 20% · Lv —, Claydol 10% · Lv —, Hippowdon 10% · Lv — +8 more

7. Relic Castle — B6F, Maze

   Wild: Cofagrigus 20% · Lv —, Krokorok 20% · Lv —, Claydol 10% · Lv —, Hippowdon 10% · Lv — +6 more

8. Relic Castle — Pot Rooms

   Wild: Unown 100% · Lv —, Regigigas 1% · Lv 70, Volcarona Lv 75

9. Desert Resort

   Trainers: Doctor Jerry Lv 30, Backpacker Kelsey Lv 29, Pkmn Ranger Mylene Lv 32, Pkmn Ranger Jaden Lv 32, Backpacker Nate Lv 29, Backpacker Liz Lv 29 +4 more

10. Relic Castle

    Trainers: Psychic Perry Lv 32, Psychic Dua Lv 31, Plasma Grunt Lv 58, Plasma Grunt Lv 58, Plasma Grunt Lv 58, Plasma Grunt Lv 60 +3 more

11. Nimbasa City

    Trainers: Plasma Grunt Lv 31, ★ Pkmn Trainer N Lv 33, Lady Magnolia Lv 33, Rich Boy Cody Lv 34, Rich Boy Rolan Lv 34, Lady Colette Lv 35

12. Nimbasa Gym

    Trainers: ★ Elesa Lv 38

★ Rival Cheren (with Snivy) — Route 4

5 Pokémon · level cap Lv 33 (every cap) · Rival Cheren (with Snivy)’s own page

	Pokémon	Moves
	Staravia Lv 31 · Reckless · Sharp Beak Clean version: Intimidate
	Boldore Lv 31 · Sturdy · Hard Stone
	Kadabra Lv 31 · Magic Guard · TwistedSpoon Clean version: Synchronize
	Simipour Lv 31 · Torrent · Expert Belt Clean version: Gluttony
	Servine Lv 33 · Contrary · Sitrus Berry Clean version: Overgrow

★ Rival Cheren (with Oshawott) — Route 4

5 Pokémon · level cap Lv 33 (every cap) · Rival Cheren (with Oshawott)’s own page

	Pokémon	Moves
	Staravia Lv 31 · Reckless · Sharp Beak Clean version: Intimidate
	Boldore Lv 31 · Sturdy · Hard Stone
	Kadabra Lv 31 · Magic Guard · TwistedSpoon Clean version: Synchronize
	Simisear Lv 31 · Blaze · Expert Belt Clean version: Gluttony
	Dewott Lv 33 · Vital Spirit · Sitrus Berry Clean version: Torrent

★ Rival Cheren (with Tepig) — Route 4

5 Pokémon · level cap Lv 33 (every cap) · Rival Cheren (with Tepig)’s own page

	Pokémon	Moves
	Staravia Lv 31 · Reckless · Sharp Beak Clean version: Intimidate
	Boldore Lv 31 · Sturdy · Hard Stone
	Kadabra Lv 31 · Magic Guard · TwistedSpoon Clean version: Synchronize
	Simisage Lv 31 · Overgrow · Expert Belt Clean version: Gluttony
	Pignite Lv 33 · Adaptability · Sitrus Berry Clean version: Blaze

Also fought around here

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

This game's documentation doesn't say where 11 of its 355 fights happen, so those trainers are on no part of this walkthrough; they are all on the Trainers page.