Part 2: Mission 1 — Mt. Moon
Petrel's fossil job. Routes 3 and 4 and every floor of Mt. Moon. Red ambushes you on the bottom floor.
Mission 1 — Mt. Moon opens 7 areas. There are 18 trainers standing in them. The fight at this checkpoint is Pokémon Trainer Red.
Where to go
Mt. Moon (1F)
Wild: Zubat 69% · Lv 2-5, Geodude 25% · Lv 2-4, Paras 5% · Lv 2-4, Clefairy 1% · Lv 3-6
Mt. Moon (B1F)
Wild: Paras 100% · Lv 2-5
Mt. Moon (B2F)
Wild: Zubat 49% · Lv 2-5, Geodude 30% · Lv 2-3, Paras 15% · Lv 2-5, Clefairy 6% · Lv 3-6
Route 3
Wild: Spearow 35% · Lv 17-20, Pidgey 30% · Lv 17-20, Nidorino 14% · Lv 17-20, Jigglypuff 10% · Lv 17-20 +2 more
Trainers: Bug Catcher Greg Lv 22, Bug Catcher Colton Lv 24, Lass Janice Lv 24, Lass Sally Lv 24, Bug Catcher James Lv 25, Youngster Ben Lv 25 +2 more
Pick up: Oran Berry (hidden)
Route 4
Wild: Magikarp 100% · Lv 5, Tentacool 100% · Lv 5-40, Horsea 84% · Lv 15-35, Rattata 35% · Lv 4-6 +6 more
Trainers: Lass Crissy Lv 31
Pick up: TM05 Roar, Great Ball (hidden), Persim Berry (hidden), Rare Candy (gift), Razz Berry (hidden)
Mt. Moon 1F
Trainers: Bug Catcher Kent Lv 6, Hiker Marcos Lv 7, Lass Miriam Lv 7, Super Nerd Jovan Lv 7, Bug Catcher Robby Lv 8, Youngster Josh Lv 8 +1 more
Mt. Moon B2F
Trainers: Little Girl Amanda Lv 7, ★ Pokémon Trainer Red Lv 25
★ Pokémon Trainer Red — Mt. Moon B2F
| Pokémon | Moves | |
|---|---|---|
 | Charmeleon Lv 25 · Charcoal | Ember Metal Claw Scratch Rage |
 | Pikachu Lv 22 · Light Ball | Thundershock Thunder Wave Quick Attack Slam |
 | Butterfree Lv 24 · Sitrus Berry | Confusion Sleep Powder Tackle Supersonic |
 | Pidgeotto Lv 24 · Sitrus Berry | Gust Quick Attack Sand-Attack Tackle |
 | Nidorino Lv 23 · Sitrus Berry | Double Kick Poison Sting Horn Attack Peck |
 | Mankey Lv 24 · Sitrus Berry | Karate Chop Fury Swipes Low Kick Scratch |
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.