Part 3: Mission 2 — Cerulean City and Nugget Bridge
Routes 24 and 25 and Bill's cottage. Blue fights you on the bridge.
Mission 2 — Cerulean City and Nugget Bridge opens 3 areas. There are 20 trainers standing in them. The fight at this checkpoint is Pokémon Trainer Blue.
Where to go
Cerulean City
Wild: Magikarp 100% · Lv 5, Tentacool 100% · Lv 5-40, Horsea 84% · Lv 15-35, Krabby 20% · Lv 5-15 +2 more
Trainers: Shopkeeper Larry Lv 12, Swimmer♂ Luis Lv 32, Picnicker Diana Lv 35, Cooltrainer Samuel Lv 39
Pick up: TM03 Water Pulse, TM36 Sludge Bomb, Bicycle (gift), Rare Candy (hidden), item#32776 (gift), item#32776 (gift), item#32776 (gift), item#32776 (gift) +12 more
Route 24
Wild: Magikarp 100% · Lv 5, Tentacool 100% · Lv 5-40, Horsea 84% · Lv 15-35, Oddish 25% · Lv 4-6 +9 more
Trainers: Bug Catcher Cale Lv 8, Lass Ali Lv 8, Youngster Timmy Lv 8, Lass Reli Lv 10, Camper Ethan Lv 11, Camper Shane Lv 11 +1 more
Pick up: TM45 Attract, Pecha Berry (hidden)
Route 25
Wild: Magikarp 100% · Lv 5, Psyduck 100% · Lv 20-40, Poliwag 60% · Lv 5-15, Poliwhirl 40% · Lv 20-30 +9 more
Trainers: Hiker Franklin Lv 11, Youngster Joey Lv 11, Hiker Wayne Lv 12, Youngster Dan Lv 12, Hiker Nob Lv 13, Lass Haley Lv 13 +3 more
Pick up: TM43 Secret Power, Bluk Berry (hidden), Elixir (hidden), Ether (hidden), Oran Berry (hidden)
★ Pokémon Trainer Blue — Route 24
| Pokémon | Moves | |
|---|---|---|
 | Pidgey Lv 13 | Tackle Sand-Attack Gust Quick Attack |
 | Abra Lv 15 | Teleport |
 | Rattata Lv 14 | Quick Attack Focus Energy Bite Pursuit |
 | Wartortle Lv 16 | Bubble Withdraw Water Gun Bite |
This game's documentation doesn't say where 4 of its 339 fights happen, so those trainers are on no part of this walkthrough; they are all on the Trainers page.