Part 4: Thunder Badge — beat Lt. Surge (Vermillion City Gym)
Fly
Thunder Badge — beat Lt. Surge (Vermillion City Gym) opens 34 areas. There are 340 trainers standing in them. The fights at this checkpoint are Rival Blue (Classic), Rival Blue (Remix), Rival Blue (Expert), and 13 more.
Where to go
Diglett's Cave
Wild: Diglett 95% · Lv 15-22, Dugtrio 5% · Lv 19-22, Axew 2% · Lv 19-22, Bagon 2% · Lv 19-22 +8 more
Route 11
Wild: Magikarp 80% · Lv 5, Luvdisc 60% · Lv 5-40, Tentacool 60% · Lv 5-40, Dhelmise 40% · Lv 5-15 +34 more
Trainers: Engineer Bernie (Classic) Lv 21, Engineer Bernie (Remix) Lv 21, Engineer Bernie (Expert) Lv 22, Engineer Braxton (Classic) Lv 20, Engineer Braxton (Remix) Lv 21, Engineer Braxton (Expert) Lv 21 +12 more
Route 9
Wild: Gligar 24% · Lv 11-17, Ekans 20% · Lv 11-17, Pawniard 20% · Lv 15-16, Rattata 20% · Lv 14-17 +22 more
Pick up: TM43 Flame Charge, TM51 Ally Switch, TM95 Snarl
Route 9 (area 2)
Wild: Dhelmise 40% · Lv 5-15, Shellder 40% · Lv 15-35, Tentacool 40% · Lv 5-15, Luvdisc 35% · Lv 25-35 +36 more
Trainers: Bug Catcher Brent (Classic) Lv 19, Bug Catcher Brent (Remix) Lv 22, Bug Catcher Brent (Expert) Lv 19, Bug Catcher Conner (Classic) Lv 22, Bug Catcher Conner (Remix) Lv 21, Bug Catcher Conner (Expert) Lv 20 +21 more
Pick up: TM51 Ally Switch
Route 10
Wild: Magikarp 80% · Lv 5, Tentacool 60% · Lv 5-40, Sudowoodo 45% · Lv 15-19, Aron 40% · Lv 14-18 +39 more
Trainers: Beauty Heidi (Classic) Lv 20, Beauty Heidi (Remix) Lv 23, Beauty Heidi (Expert) Lv 20, Hiker Dudley (Classic) Lv 21, Hiker Dudley (Remix) Lv 21, Hiker Dudley (Expert) Lv 21
Pick up: TM93 Wild Charge
Rock Tunnel
Wild: Geodude 85% · Lv 5-30, Ferroseed 45% · Lv 15-20, Shuckle 40% · Lv 10-20, Zubat 30% · Lv 15-16 +14 more
Trainers: Cool Trainer Laura (team 1) Lv 24, Cool Trainer Laura (team 2) Lv 24, Cool Trainer Laura (team 3) Lv 25, Cool Trainer Laura (team 4) Lv 24, Cool Trainer Laura (team 5) Lv 24, Cool Trainer Laura (team 6) Lv 26 +18 more
Pick up: TM47 Low Sweep, TM80 Rock Slide, TM84 Poison Jab
Rock Tunnel (area 2)
Wild: Geodude 85% · Lv 5-30, Ferroseed 45% · Lv 10-20, Shuckle 40% · Lv 10-20, Zubat 20% · Lv 8 +16 more
Trainers: Hiker Allen (Classic) Lv 25, Hiker Allen (Remix) Lv 25, Hiker Allen (Expert) Lv 26, Hiker Pat (Classic) Lv 20, Hiker Pat (Remix) Lv 22, Hiker Pat (Expert) Lv 23 +15 more
Pick up: TM84 Poison Jab
Rock Tunnel (area 3)
Wild: Geodude 85% · Lv 5-30, Minior (Meteor) 45% · Lv 15-20, Shuckle 40% · Lv 10-20, Cubone 30% · Lv 15 +16 more
Power Plant
Wild: Magnemite 40% · Lv 10-12, Voltorb 40% · Lv 11-13, Klink 25% · Lv 11-13, Elekid 20% · Lv 10-12 +4 more
Pick up: TM25 Thunder, TM33 Reflect, TM57 Charge Beam
Power Plant (area 2)
Wild: Elekid 30% · Lv 32-35, Klink 30% · Lv 32-35, Magnemite 30% · Lv 32-35, Voltorb 30% · Lv 32-35 +6 more
Pick up: TM33 Reflect
Power Plant (area 3)
Wild: Klink 30% · Lv 32-35, Luxio 30% · Lv 32-35, Magnemite 30% · Lv 32-35, Voltorb 30% · Lv 32-35 +5 more
Pick up: TM25 Thunder
Pokemon Tower F3
Wild: Gastly 65% · Lv 25-30, Shuppet 25% · Lv 30-35, Litwick 15% · Lv 25-33, Misdreavus 15% · Lv 25-30 +6 more
Trainers: Channeler Deborah (Classic) Lv 33, Channeler Deborah (Remix) Lv 32, Channeler Deborah (Expert) Lv 33, Channeler Hope (Classic) Lv 33, Channeler Hope (Remix) Lv 33, Channeler Hope (Expert) Lv 30 +9 more
Pokemon Tower F4
Wild: Gastly 65% · Lv 25-30, Shuppet 25% · Lv 30-35, Litwick 15% · Lv 25-33, Misdreavus 15% · Lv 25-30 +5 more
Trainers: Channeler Carrietta (Classic) Lv 32, Channeler Carrietta (Remix) Lv 31, Channeler Carrietta (Expert) Lv 32, Channeler Morgan (Classic) Lv 34, Channeler Morgan (Remix) Lv 33, Channeler Morgan (Expert) Lv 33 +7 more
Pokemon Tower F5
Wild: Gastly 65% · Lv 25-30, Shuppet 25% · Lv 30-35, Litwick 15% · Lv 25-33, Misdreavus 15% · Lv 25-30 +6 more
Trainers: Channeler Karina (Classic) Lv 32, Channeler Karina (Remix) Lv 32, Channeler Karina (Expert) Lv 32, Channeler Ruth (Classic) Lv 33, Channeler Ruth (Remix) Lv 33, Channeler Ruth (Expert) Lv 35 +10 more
Pokemon Tower F6
Wild: Gastly 45% · Lv 25-30, Haunter 25% · Lv 30-35, Shuppet 20% · Lv 30-35, Litwick 15% · Lv 25-33 +9 more
Trainers: Channeler Emilia (Classic) Lv 34, Channeler Emilia (Remix) Lv 34, Channeler Emilia (Expert) Lv 35, Haunted Girl ??? (team 1) Lv 40, Haunted Girl ??? (team 2) Lv 37, Haunted Girl ??? (team 3) Lv 41 +5 more
Pick up: TM61 Will-O-Wisp
Hidden Tomb
Wild: Duskull 100% · Lv 12-22, Litwick 25% · Lv 12-22, Spiritomb 25% · Lv 20-25, Oricorio (Sensu) 20% · Lv 20-25 +1 more
Route 8
Wild: Meowth 30% · Lv 18-20, Pidgey 30% · Lv 18-20, Houndour 29% · Lv 18-20, Ekans 20% · Lv 17-19 +20 more
Trainers: Beauty Andrea (Classic) Lv 23, Beauty Andrea (Remix) Lv 25, Beauty Andrea (Expert) Lv 24, Biker Jaren (Classic) Lv 25, Biker Jaren (Remix) Lv 26, Biker Jaren (Expert) Lv 25 +33 more
Route 7
Wild: Venonat 30% · Lv 19-22, Murkrow 25% · Lv 17-19, Snubbull 25% · Lv 17-20, Honedge 20% · Lv 18-20 +17 more
Trainers: Lass Lina (Classic) Lv 28, Lass Lina (Remix) Lv 28, Lass Lina (Expert) Lv 28, Painter Frederique (Classic) Lv 25, Painter Frederique (Remix) Lv 25, Painter Frederique (Expert) Lv 25 +15 more
Pick up: TM49 Echoed Voice
Celadon City
Wild: Grimer 90% · Lv 5-10, Bruxish 50% · Lv 30-40, Muk 30% · Lv 25-35, Rattata 30% · Lv 14-20 +16 more
Pick up: TM22 Solar Beam, TM81 X-Scissor, TM90 Substitute
Underground (area 2)
Trainers: Delivery Man Phillip Lv 32
S.S. Anne
Trainers: ★ Rival Blue (Classic) Lv 22, ★ Rival Blue (Remix) Lv 23, ★ Rival Blue (Expert) Lv 22
S.S. Anne (area 2)
Trainers: Super Nerd Miguel (team 1) Lv 20, Super Nerd Miguel (team 2) Lv 18, Super Nerd Miguel (team 3) Lv 20, Super Nerd Miguel (team 4) Lv 20
S.S. Anne (area 3)
Trainers: Gentleman Arthur (Classic) Lv 19, Gentleman Arthur (Remix) Lv 20, Gentleman Arthur (Expert) Lv 20, Gentleman Thomas (Classic) Lv 20, Gentleman Thomas (Remix) Lv 18, Gentleman Thomas (Expert) Lv 20 +9 more
S.S. Anne (area 5)
Trainers: Fisherman Barny (Classic) Lv 17, Fisherman Barny (Remix) Lv 17, Fisherman Barny (Expert) Lv 21, Sailor Duncan (Classic) Lv 17, Sailor Duncan (Remix) Lv 20, Sailor Duncan (Expert) Lv 18 +6 more
Also open from here
10 more areas the same checkpoint opens, each with its own page.
★ Rival Blue (Classic) — S.S. Anne
| Pokémon | Moves | |
|---|---|---|
 | Nidorino Lv 22 · Tangled Feet Nidotto — a fusion: body Pidgeotto, head Nidorino. Poison/Flying, 61/64/55/52/52/68. Shown under its head, because there is no sprite for a fusion here. | |
 | Mankey Lv 20 · Run Away Manicate — a fusion: body Raticate, head Mankey. Fighting/Normal, 44/80/51/39/53/87. Shown under its head, because there is no sprite for a fusion here. | |
 | Staryu Lv 18 · Synchronize Starbra — a fusion: body Kadabra, head Staryu. Water/Psychic, 33/38/38/86/59/98. Shown under its head, because there is no sprite for a fusion here. | |
| Rival's starter Lv 22 · — 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) — S.S. Anne
| Pokémon | Moves | |
|---|---|---|
 | Nincada Lv 19 · Defiant · Focus Sash Niniard — a fusion: body Pawniard, head Nincada. Bug/Steel, 35/71/76/33/33/53. Shown under its head, because there is no sprite for a fusion here. | Leech Life Feint Attack Rock Tomb Metal Claw |
 | Cottonee Lv 22 · Intimidate Cottonxio — a fusion: body Luxio, head Cottonee. Grass/Electric, 46/65/52/44/49/62. Shown under its head, because there is no sprite for a fusion here. | Spark Leech Seed Razor Leaf Stun Spore |
 | Horsea Lv 18 · Sap Sipper Hormy — a fusion: body Goomy, head Horsea. Water/Dragon, 35/46/46/64/41/46. Shown under its head, because there is no sprite for a fusion here. | Water Gun Dragon Breath Absorb Bide |
 | Dhelmise Lv 18 · Steelworker | Mega Drain Gyro Ball Astonish Rapid Spin |
 | Solosis Lv 23 · Magic Guard · Oran Berry Solovee — a fusion: body Eevee, head Solosis. Psychic/Normal, 48/46/46/85/54/42. Shown under its head, because there is no sprite for a fusion here. | Hidden Power Calm Mind Swift Stored Power |
★ Rival Blue (Expert) — S.S. Anne
| Pokémon | Moves | |
|---|---|---|
 | Wigglytuff Lv 18 · Arena Trap · Leftovers Wigglytrio — a fusion: body Dugtrio, head Wigglytuff. Normal/Ground, 104/89/48/72/56/95. Shown under its head, because there is no sprite for a fusion here. | Bulldoze Frustration Sucker Punch Play Rough |
 | Nidoking Lv 22 · Sheer Force · Life Orb Nidopunny — a fusion: body Lopunny, head Nidoking. Poison/Normal, 75/84/81/74/82/98. Shown under its head, because there is no sprite for a fusion here. | Poison Tail Frustration Rock Smash Baby-Doll Eyes |
 | Fearow Lv 20 · Sniper · Life Orb Fearler — a fusion: body Graveler, head Fearow. Flying/Ground, 61/93/97/55/55/56. Shown under its head, because there is no sprite for a fusion here. | Drill Run Rock Tomb Pluck Focus Energy |
| Rival's starter Lv 22 · — · Life Orb 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. |
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.