Part 3: Cascade Badge — beat Misty (Cerulean City Gym)

Old Rod (Vermillion City)

Cascade Badge — beat Misty (Cerulean City Gym) opens 10 areas. There are 107 trainers standing in them. The fights at this checkpoint are Gym Leader Lt. Surge (Classic), Gym Leader Lt. Surge (Remix), Gym Leader Lt. Surge (Expert), and 29 more.

Where to go

1. Route 24

   Wild: Magikarp 80% · Lv 5, Poliwag 60% · Lv 5-15, Psyduck 50% · Lv 20-40, Slowpoke 50% · Lv 20-40 +28 more

   Trainers: Bug Catcher Cale (Classic) Lv 10, Bug Catcher Cale (Remix) Lv 14, Bug Catcher Cale (Expert) Lv 12, Camper Ethan (Classic) Lv 18, Camper Ethan (Remix) Lv 16, Camper Ethan (Expert) Lv 19 +13 more

   Pick up: TM10 Hidden Power, TM19 Telekinesis

2. Cerulean Cape

   Wild: Magikarp 80% · Lv 5, Dhelmise 60% · Lv 5-15, Poliwag 60% · Lv 5-15, Psyduck 50% · Lv 20-40 +21 more

3. Bill's garden

   Wild: Unown 100% · Lv 1-2, Magikarp 80% · Lv 5, Poliwag 60% · Lv 5-15, Psyduck 50% · Lv 20-40 +14 more

4. Cyberspace

   Wild: Porygon 100% · Lv 20

5. Route 5

   Wild: Meowth 35% · Lv 10-16, Pidgey 35% · Lv 13-16, Murkrow 30% · Lv 13-16, Oddish 30% · Lv 13-16 +15 more

   Trainers: Pokémon Breeder Maude (Classic) Lv 15, Pokémon Breeder Maude (Remix) Lv 15, Pokémon Breeder Maude (Expert) Lv 15, Socialite Mathilda (Classic) Lv 16, Socialite Mathilda (Remix) Lv 15, Socialite Mathilda (Expert) Lv 16

6. Route 6

   Wild: Magikarp 80% · Lv 5, Poliwag 60% · Lv 5-15, Luvdisc 59% · Lv 5, Psyduck 50% · Lv 20-40 +29 more

   Trainers: Bug Catcher Elijah (Classic) Lv 20, Bug Catcher Elijah (Remix) Lv 18, Bug Catcher Elijah (Expert) Lv 20, Camper Jeff (Classic) Lv 16, Camper Jeff (Remix) Lv 20, Camper Jeff (Expert) Lv 16 +12 more

   Pick up: TM54 False Swipe

7. Vermillion City

   Wild: Magikarp 60% · Lv 5, Tentacool 60% · Lv 5-40, Wimpod 38% · Lv 5, Mareanie 35% · Lv 15-16 +18 more

   Pick up: TM24 Thunderbolt, TM73 Thunder Wave, HM07 Teleport

8. Route 25

   Trainers: Camper Flint (Classic) Lv 14, Camper Flint (Remix) Lv 16, Camper Flint (Expert) Lv 15, Hiker Franklin (Classic) Lv 15, Hiker Franklin (Remix) Lv 15, Hiker Franklin (Expert) Lv 17 +16 more

9. Vermillion City Gym

   Trainers: Engineer Baily (Classic) Lv 21, Engineer Baily (Remix) Lv 21, Engineer Baily (Expert) Lv 21, Gentleman Tucker (Classic) Lv 23, Gentleman Tucker (Remix) Lv 22, Gentleman Tucker (Expert) Lv 23 +6 more

10. Fighting Arena

    Trainers: ★ Gym Leader Blaine (Classic & Expert) Lv 71, ★ Gym Leader Blaine (Remix) Lv 71, ★ Gym Leader Brock (Classic & Expert) Lv 71, ★ Gym Leader Brock (Remix) Lv 71, ★ Gym Leader Chuck (Classic & Expert) Lv 84, ★ Gym Leader Chuck (Remix) Lv 84 +24 more

★ Gym Leader Lt. Surge (Classic) — Vermillion City Gym

3 Pokémon · level cap Lv 26 (every cap) · Gym Leader Lt. Surge (Classic)’s own page

	Pokémon	Moves
	Voltorb Lv 24 · Static · Magnet Voltby — a fusion: body Krabby, head Voltorb. Electric/Water, 36/80/76/44/44/66. Shown under its head, because there is no sprite for a fusion here.	Metal Claw Bubble Light Screen Spark
	Pikachu Lv 24 · Static · Magnet Pikalett — a fusion: body Diglett, head Pikachu. Electric/Ground, 26/54/29/44/41/93. Shown under its head, because there is no sprite for a fusion here.	Sand Attack Mud-Slap Quick Attack Thunder Shock
	Raichu Lv 26 · Static · Sitrus Berry Raibuzz — a fusion: body Electabuzz, head Raichu. Electric/Electric, 61/85/56/91/81/106. Shown under its head, because there is no sprite for a fusion here.	Thunder Punch Thunder Wave Quick Attack Double Team

★ Gym Leader Lt. Surge (Remix) — Vermillion City Gym

3 Pokémon · level cap Lv 26 (every cap) · Gym Leader Lt. Surge (Remix)’s own page

	Pokémon	Moves
	Koffing Lv 24 · Poison Heal · Expert Belt Koffloom — a fusion: body Breloom, head Koffing. Poison/Fighting, 46/107/84/60/50/57. Shown under its head, because there is no sprite for a fusion here.	Mach Punch Bullet Seed Clear Smog Double Team
	Flaaffy Lv 24 · Intimidate Flaaty — a fusion: body Scrafty, head Flaaffy. Electric/Fighting, 67/78/94/68/78/53. Shown under its head, because there is no sprite for a fusion here.	Brick Break Thunder Punch Fake Out Ice Punch
	Houndoom Lv 26 · Flash Fire · Sitrus Berry Hounlade — a fusion: body Gallade, head Houndoom. Dark/Fighting, 72/113/59/94/91/84. Shown under its head, because there is no sprite for a fusion here.	Bulk Up Flame Charge Rock Smash Bite

★ Gym Leader Lt. Surge (Expert) — Vermillion City Gym

3 Pokémon · level cap Lv 26 (every cap) · Gym Leader Lt. Surge (Expert)’s own page

	Pokémon	Moves
	Munchlax Lv 24 · Aftermath · Life Orb Munchode — a fusion: body Electrode, head Munchlax. Normal/Electric, 110/61/59/52/82/101. Shown under its head, because there is no sprite for a fusion here.	Odor Sleuth Body Slam Spark Explosion
	Seel Lv 24 · Sniper · Scope Lens Seellery — a fusion: body Octillery, head Seel. Water/Water, 68/85/68/65/71/45. Shown under its head, because there is no sprite for a fusion here.	Focus Energy Ice Shard Aqua Jet Gunk Shot
	Electabuzz Lv 26 · Iron Fist · Sitrus Berry Electachan — a fusion: body Hitmonchan, head Electabuzz. Electric/Fighting, 59/97/71/74/92/85. Shown under its head, because there is no sprite for a fusion here.	Thunder Punch Bullet Punch Ice Punch Mach Punch

Also fought around here

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

This game's documentation doesn't say where 8 of its 1653 fights happen, so those trainers are on no part of this walkthrough; they are all on the Trainers page.