Part 5: Rainbow Badge — beat Erika (Celadon City Gym)
Good Rod (the Fishing Hut)
Rainbow Badge — beat Erika (Celadon City Gym) opens 22 areas. There are 228 trainers standing in them. The fights at this checkpoint are Rival Blue (Classic & Expert), Rival Blue (Remix), Gym Leader Koga (Classic), and 2 more.
Where to go
Celadon Sewers
Wild: Grimer 50% · Lv 25-30, Magikarp 20% · Lv 15-25, Magnemite 20% · Lv 20-25, Mareanie 20% · Lv 25-30 +15 more
Trainers: Team Rocket Virginia (Classic) Lv 26, Team Rocket Virginia (Remix) Lv 28, Team Rocket Virginia (Expert) Lv 26, Team Rocket Lionel (Classic) Lv 22, Team Rocket Lionel (Remix) Lv 25, Team Rocket Lionel (Expert) Lv 22 +21 more
Pick up: TM34 Sludge Wave, TM68 Giga Impact
Celadon Sewers (area 2)
Wild: Grimer 50% · Lv 25-30, Carvanha 20% · Lv 20-27, Magikarp 20% · Lv 15-25, Raticate 20% · Lv 20-25 +13 more
Route 16
Wild: Doduo 35% · Lv 18-22, Rattata 30% · Lv 18-22, Snorunt 30% · Lv 18-22, Spearow 30% · Lv 20-22 +15 more
Pick up: HM02 Fly
Route 17
Wild: Magikarp 80% · Lv 5, Tentacool 60% · Lv 5-40, Horsea 40% · Lv 5-15, Krabby 40% · Lv 5-15 +38 more
Trainers: Biker Billy (Classic) Lv 37, Biker Billy (Remix) Lv 35, Biker Billy (Expert) Lv 39, Biker Charles (Classic) Lv 35, Biker Charles (Remix) Lv 35, Biker Charles (Expert) Lv 36 +21 more
Pick up: TM70 Roost, TM78 Bulldoze
Route 18
Wild: Tentacool 50% · Lv 5-40, Feebas 39% · Lv 5, Bruxish 35% · Lv 5-15, Dhelmise 35% · Lv 15-35 +28 more
Trainers: Aroma Lady Miranda (Classic) Lv 36, Aroma Lady Miranda (Remix) Lv 36, Aroma Lady Miranda (Expert) Lv 36, Biker Isaac (Classic) Lv 32, Biker Isaac (Remix) Lv 32, Biker Isaac (Expert) Lv 36 +15 more
Pick up: TM53 Energy Ball
Route 12
Wild: Magikarp 80% · Lv 5, Tentacool 60% · Lv 5-40, Luvdisc 40% · Lv 35-40, Corsola 35% · Lv 5-15 +35 more
Trainers: Camper Justin (Classic) Lv 29, Camper Justin (Remix) Lv 36, Camper Justin (Expert) Lv 31, Engineer Luca (Classic) Lv 31, Engineer Luca (Remix) Lv 31, Engineer Luca (Expert) Lv 31 +17 more
Pick up: HM04 Strength
Flooded Cave
Wild: Feebas 100% · Lv 5, Magikarp 100% · Lv 5, Luvdisc 99% · Lv 20-55, Mareanie 98% · Lv 20 +7 more
Pick up: TM02 Dragon Claw
Route 13
Wild: Magikarp 80% · Lv 5, Bruxish 40% · Lv 25-30, Oddish 40% · Lv 22-26, Tentacool 40% · Lv 25-26 +33 more
Trainers: Beauty Lola (Classic) Lv 34, Beauty Lola (Remix) Lv 34, Beauty Lola (Expert) Lv 36, Beauty Pamela (Classic) Lv 37, Beauty Pamela (Remix) Lv 35, Beauty Pamela (Expert) Lv 37 +42 more
Pick up: TM01 Hone Claws, TM44 Rest
Route 14
Wild: Wailmer 39% · Lv 5, Dhelmise 35% · Lv 5-15, Goldeen 35% · Lv 25-32, Grimer 35% · Lv 25-32 +37 more
Trainers: Biker Malik (Classic) Lv 33, Biker Malik (Remix) Lv 33, Biker Malik (Expert) Lv 35, Bird Keeper Benny (Classic) Lv 32, Bird Keeper Benny (Remix) Lv 35, Bird Keeper Benny (Expert) Lv 35 +15 more
Route 15
Wild: Grimer 35% · Lv 25-32, Pinsir 35% · Lv 29-30, Pyukumuku 30% · Lv 25-32, Mareanie 25% · Lv 27-28 +38 more
Trainers: Aroma Lady Yazmin (Classic) Lv 33, Aroma Lady Yazmin (Remix) Lv 33, Aroma Lady Yazmin (Expert) Lv 34, Beauty Grace (Classic) Lv 34, Beauty Grace (Remix) Lv 34, Beauty Grace (Expert) Lv 34 +20 more
Pick up: TM27 Return, TM36 Sludge Bomb
Creepy House
Wild: Shuppet 50% · Lv 22-24, Litwick 40% · Lv 24-26, Sableye 20% · Lv 22-29, Dusclops 10% · Lv 25-30 +1 more
Safari Zone Area 1
Wild: Magikarp 80% · Lv 5, Goldeen 40% · Lv 5-15, Feebas 39% · Lv 5, Carvanha 35% · Lv 5-15 +41 more
Pick up: TM60 Quash
Safari Zone Area 2
Wild: Magikarp 80% · Lv 5, Goldeen 60% · Lv 5-15, Stunfisk 50% · Lv 5-40, Feebas 39% · Lv 5 +43 more
Safari Zone Area 3
Wild: Magikarp 80% · Lv 5, Goldeen 60% · Lv 5-15, Seaking 38% · Lv 20-30, Carvanha 35% · Lv 5-15 +47 more
Pick up: TM62 Acrobatics
Safari Zone Area 4
Wild: Magikarp 80% · Lv 5, Goldeen 60% · Lv 5-15, Stunfisk 50% · Lv 5-40, Carvanha 40% · Lv 5 +47 more
Pick up: HM03 Surf
Safari Zone Area 5
Wild: Magikarp 80% · Lv 5, Vibrava 65% · Lv 29-30, Goldeen 60% · Lv 5-15, Carvanha 50% · Lv 35-40 +27 more
Pick up: TM32 Double Team, TM65 Shadow Claw
Safari Zone Area 5 (area 2)
Wild: Yamask 40% · Lv 20-24, Larvesta 30% · Lv 20-25, Trapinch 20% · Lv 19-23, Cacnea 10% · Lv 20-25 +3 more
Pick up: TM65 Shadow Claw
Underwater (Route 12)
Wild: Shellder 95% · Lv 5-30, Kabuto 50% · Lv 5-30, Omanyte 50% · Lv 25-40, Golisopod 25% · Lv 30-34 +11 more
Underwater (Route 13)
Wild: Shellder 95% · Lv 5-30, Kabuto 50% · Lv 5-30, Omanyte 50% · Lv 25-40, Chinchou 25% · Lv 20-30 +11 more
Fuchsia City
Trainers: ★ Rival Blue (Classic & Expert) Lv 41, ★ Rival Blue (Remix) Lv 43
Fuchsia City Gym
Trainers: Juggler Kayden (Classic) Lv 36, Juggler Kayden (Remix) Lv 36, Juggler Kayden (Expert) Lv 36, Juggler Kirk (Classic) Lv 35, Juggler Kirk (Remix) Lv 36, Juggler Kirk (Expert) Lv 35 +15 more
Celadon Café
Trainers: Cool Trainer Jerry (team 1) Lv 25, Cool Trainer Jerry (team 2) Lv 33, Cool Trainer Jerry (team 3) Lv 25, Cool Trainer Jerry (team 4) Lv 32, Cool Trainer Jerry (team 5) Lv 33, Cool Trainer Jerry (team 6) Lv 32 +6 more
★ Rival Blue (Classic & Expert) — Fuchsia City
| Pokémon | Moves | |
|---|---|---|
 | Nidoking Lv 36 · Tangled Feet Nidogeot — a fusion: body Pidgeot, head Nidoking. Poison/Flying, 81/87/75/79/73/95. Shown under its head, because there is no sprite for a fusion here. | |
 | Tauros Lv 39 · Intimidate | |
 | Electabuzz Lv 37 · Intimidate Electados — a fusion: body Gyarados, head Electabuzz. Electric/Flying, 74/110/71/83/89/89. Shown under its head, because there is no sprite for a fusion here. | |
 | Staryu Lv 36 · Synchronize Starkazam — a fusion: body Alakazam, head Staryu. Water/Psychic, 38/48/48/91/67/108. Shown under its head, because there is no sprite for a fusion here. | |
| Rival's starter Lv 41 · — The game swaps this in for a fusion of the two starters you didn't take, so what you face depends on the one you picked. |
★ Rival Blue (Remix) — Fuchsia City
| Pokémon | Moves | |
|---|---|---|
 | Whimsicott Lv 42 · Intimidate Whimsiray — a fusion: body Luxray, head Whimsicott. Grass/Electric, 66/102/80/82/76/84. Shown under its head, because there is no sprite for a fusion here. | Volt Switch Giga Drain Tailwind Substitute |
 | Reuniclus Lv 43 · Pixilate Reuniveon — a fusion: body Sylveon, head Reuniclus. Psychic/Fairy, 104/64/68/119/99/50. Shown under its head, because there is no sprite for a fusion here. | Psychic Moonblast Shadow Ball Wish |
 | Seadra Lv 42 · Sap Sipper · Wide Lens Seagoo — a fusion: body Sliggoo, head Seadra. Water/Dragon, 58/71/66/90/67/68. Shown under its head, because there is no sprite for a fusion here. | Muddy Water Dragon Pulse Body Slam Counter |
 | Mankey Lv 42 · Anger Point · Sitrus Berry Manblim — a fusion: body Drifblim, head Mankey. Fighting/Flying, 76/79/40/53/48/76. Shown under its head, because there is no sprite for a fusion here. | Close Combat Acrobatics Night Slash Earthquake |
 | Ninjask Lv 40 · Speed Boost · Focus Sash Niniard — a fusion: body Pawniard, head Ninjask. Bug/Steel, 55/86/61/46/46/93. Shown under its head, because there is no sprite for a fusion here. | Baton Pass Swords Dance Iron Head X-Scissor |
 | Dhelmise Lv 42 · Steelworker Dheldash — a fusion: body Rapidash, head Dhelmise. Ghost/Fire, 67/109/79/83/86/83. Shown under its head, because there is no sprite for a fusion here. | Anchor Shot Shadow Claw Flame Charge Giga Drain |
★ Gym Leader Koga (Classic) — Fuchsia City Gym
| Pokémon | Moves | |
|---|---|---|
 | Venomoth Lv 35 · Shield Dust · Poison Barb Venomer — a fusion: body Grimer, head Venomoth. Bug/Poison, 72/74/53/73/66/46. Shown under its head, because there is no sprite for a fusion here. | Signal Beam Sludge Bomb Fling Disable |
 | Magnemite Lv 36 · Levitate · Poison Barb Magnefing — a fusion: body Koffing, head Magnemite. Steel/Poison, 29/54/86/83/51/38. Shown under its head, because there is no sprite for a fusion here. | Sludge Bomb Self-Destruct Sonic Boom Supersonic |
 | Beedrill Lv 36 · Swarm · Poison Barb Beether — a fusion: body Scyther, head Beedrill. Bug/Flying, 66/103/66/48/79/95. Shown under its head, because there is no sprite for a fusion here. | Agility Pin Missile Poison Jab Toxic Spikes |
 | Chansey Lv 38 · Natural Cure · Black Sludge Chanuk — a fusion: body Muk, head Chansey. Normal/Poison, 201/71/51/44/103/49. Shown under its head, because there is no sprite for a fusion here. | Toxic Double Team Take Down Acid Armor |
Also fought around here
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.