Part 7: Marsh Badge — beat Sabrina (Saffron City Gym)
Surf, Super Rod (Cinnabar Island)
Marsh Badge — beat Sabrina (Saffron City Gym) opens 16 areas. There are 103 trainers standing in them. The fights at this checkpoint are Gym Leader Blaine (Classic), Gym Leader Blaine (Remix), Gym Leader Blaine (Expert).
Where to go
Route 19
Wild: Magikarp 80% · Lv 5, Tentacool 50% · Lv 5-40, Horsea 40% · Lv 5-15, Krabby 40% · Lv 5-15 +19 more
Trainers: Swimmer Alice (Classic) Lv 36, Swimmer Alice (Remix) Lv 37, Swimmer Alice (Expert) Lv 40, Swimmer Reece (Classic) Lv 35, Swimmer Reece (Remix) Lv 36, Swimmer Reece (Expert) Lv 42 +6 more
Route 20
Wild: Magikarp 80% · Lv 5, Tentacool 50% · Lv 5-40, Feebas 39% · Lv 5, Dhelmise 35% · Lv 5-15 +19 more
Trainers: Swimmer Anya (Classic) Lv 39, Swimmer Anya (Remix) Lv 37, Swimmer Anya (Expert) Lv 50, Swimmer Ariel (Classic) Lv 38, Swimmer Ariel (Remix) Lv 38, Swimmer Ariel (Expert) Lv 42 +12 more
Seafoam Islands B1
Wild: Shellder 50% · Lv 25-30, Krabby 35% · Lv 25-30, Froslass 20% · Lv 29-34, Glalie 20% · Lv 29-34 +4 more
Seafoam Islands B2
Wild: Snorunt 24% · Lv 33-35, Delibird 20% · Lv 33-34, Golbat 20% · Lv 33, Shellder 20% · Lv 33-34 +12 more
Seafoam Islands B3
Wild: Shellder 20% · Lv 33-34, Delibird 17% · Lv 33-34, Swinub 14% · Lv 30, Amaura 10% · Lv 33-37 +15 more
Trainers: Team Rocket Svetlana (Classic) Lv 44, Team Rocket Svetlana (Remix) Lv 45, Team Rocket Svetlana (Expert) Lv 46
Pick up: TM07 Hail
Seafoam Islands B4
Wild: Staryu 100% · Lv 5, Feebas 79% · Lv 5, Krabby 35% · Lv 5-15, Remoraid 35% · Lv 5-15 +29 more
Route 21
Wild: Magikarp 80% · Lv 5, Tentacool 80% · Lv 30-35, Tangela 50% · Lv 20-30, Krabby 45% · Lv 5-15 +30 more
Trainers: Fisherman Claude (Classic) Lv 41, Fisherman Claude (Remix) Lv 41, Fisherman Claude (Expert) Lv 41, Fisherman Ronald (Classic) Lv 42, Fisherman Ronald (Remix) Lv 39, Fisherman Ronald (Expert) Lv 42 +12 more
Cinnabar Island
Wild: Magikarp 80% · Lv 5, Tentacool 50% · Lv 5-40, Horsea 40% · Lv 5-15, Krabby 40% · Lv 5-15 +21 more
Pick up: TM38 Fire Blast
Pokémon Mansion
Wild: Raticate 30% · Lv 32-36, Grimer 15% · Lv 28, Klink 15% · Lv 28, Koffing 15% · Lv 28-30 +14 more
Trainers: Pyromaniac Julio (Classic) Lv 43, Pyromaniac Julio (Remix) Lv 43, Pyromaniac Julio (Expert) Lv 43, Scientist Frisk (Classic) Lv 51, Scientist Frisk (Remix) Lv 41, Scientist Frisk (Expert) Lv 51 +3 more
Pick up: TM14 Blizzard, TM64 Explosion
Pokémon Mansion (area 2)
Wild: Raticate 30% · Lv 32-36, Grimer 15% · Lv 28, Houndour 15% · Lv 28, Koffing 15% · Lv 28-30 +13 more
Trainers: Burglar Arnie (Classic) Lv 45, Burglar Arnie (Remix) Lv 45, Burglar Arnie (Expert) Lv 45, Burglar Lewis (Classic) Lv 43, Burglar Lewis (Remix) Lv 42, Burglar Lewis (Expert) Lv 43
Pokémon Mansion (area 3)
Wild: Raticate 30% · Lv 32-36, Lampent 20% · Lv 32-36, Larvesta 20% · Lv 30-32, Grimer 15% · Lv 28 +12 more
Trainers: Scientist Braydon (Classic) Lv 44, Scientist Braydon (Remix) Lv 44, Scientist Braydon (Expert) Lv 44, Scientist Ivan (Classic) Lv 43, Scientist Ivan (Remix) Lv 42, Scientist Ivan (Expert) Lv 43
Pokémon Mansion (area 4)
Wild: Ditto 50% · Lv 30, Grimer 15% · Lv 28, Koffing 15% · Lv 28-30, Larvesta 15% · Lv 28 +5 more
Trainers: Burglar Simon (Classic) Lv 45, Burglar Simon (Remix) Lv 45, Burglar Simon (Expert) Lv 45, Scientist Jimi (Classic) Lv 46, Scientist Jimi (Remix) Lv 46, Scientist Jimi (Expert) Lv 46
Pick up: TM14 Blizzard, TM64 Explosion
Underwater (Route 21)
Wild: Corsola 25% · Lv 25-35, Horsea 20% · Lv 25-35, Krabby 15% · Lv 25-35, Staryu 15% · Lv 25-35 +6 more
Cinnabar Island Gym
Trainers: Burglar Quinn (Classic) Lv 41, Burglar Quinn (Remix) Lv 42, Burglar Quinn (Expert) Lv 41, Burglar Ramon (Classic) Lv 45, Burglar Ramon (Remix) Lv 48, Burglar Ramon (Expert) Lv 45 +15 more
Cinnabar Lab (area 3)
Trainers: Robot R.e.d. Lv 100
Cinnabar Lab (area 2)
Trainers: Robot B.l.u.e. Lv 100, Robot G.r.e.e.n. Lv 100, Robot Y.e.l.l.o.w. Lv 100
★ Gym Leader Blaine (Classic) — Cinnabar Island Gym
| Pokémon | Moves | |
|---|---|---|
 | Gloom Lv 47 · Chlorophyll · Charcoal Gloodash — a fusion: body Rapidash, head Gloom. Grass/Fire, 61/87/69/82/76/83. Shown under its head, because there is no sprite for a fusion here. | Sunny Day Solar Beam Flamethrower Toxic |
 | Ninetales Lv 47 · Flash Fire · Charcoal Ninenine — a fusion: body Arcanine, head Ninetales. Fire/Fire, 78/98/78/87/92/96. Shown under its head, because there is no sprite for a fusion here. | Roar Fire Fang Confuse Ray Thunder Fang |
 | Magmar Lv 49 · Lightning Rod · Passho Berry Magdon — a fusion: body Rhydon, head Magmar. Fire/Rock, 78/117/99/81/71/57. Shown under its head, because there is no sprite for a fusion here. | Fire Punch Drill Run Confuse Ray Hammer Arm |
 | Charizard Lv 51 · Pressure · Charcoal Chardactyl — a fusion: body Aerodactyl, head Charizard. Fire/Flying, 78/98/69/92/81/119. Shown under its head, because there is no sprite for a fusion here. | Crunch Sky Drop Fire Blast Hyper Beam |
★ Gym Leader Blaine (Remix) — Cinnabar Island Gym
| Pokémon | Moves | |
|---|---|---|
 | Mr. Mime Lv 47 · Soundproof · Air Balloon Mr. Klang — a fusion: body Klinklang, head Mr. Mime. Psychic/Steel, 46/81/97/89/108/90. Shown under its head, because there is no sprite for a fusion here. | Gear Grind Shift Gear Encore Zen Headbutt |
 | Wobbuffet Lv 47 · Oblivious · Focus Sash Woblord — a fusion: body Wailord, head Wobbuffet. Psychic/Water, 182/71/49/52/53/51. Shown under its head, because there is no sprite for a fusion here. | Counter Mirror Coat Body Slam Clear Smog |
 | Magmortar Lv 49 · Dazzling · Sitrus Berry Magmorish — a fusion: body Bruxish, head Magmortar. Fire/Psychic, 72/101/68/106/86/88. Shown under its head, because there is no sprite for a fusion here. | Belly Drum Psychic Fangs Aqua Jet Mach Punch |
 | Machamp Lv 51 · No Guard · Flame Orb Magross — a fusion: body Metagross, head Machamp. Fighting/Psychic, 86/133/112/74/86/64. Shown under its head, because there is no sprite for a fusion here. | Meteor Mash Protect Cross Chop Zen Headbutt |
★ Gym Leader Blaine (Expert) — Cinnabar Island Gym
| Pokémon | Moves | |
|---|---|---|
 | Lapras Lv 48 · Water Absorb · Rindo Berry Lapterra — a fusion: body Torterra, head Lapras. Water/Ground, 117/100/96/81/91/57. Shown under its head, because there is no sprite for a fusion here. | Surf Earthquake Ice Shard Giga Drain |
 | Togekiss Lv 48 · Drought · Charcoal Togetales — a fusion: body Ninetales, head Togekiss. Fairy/Fire, 80/66/81/107/109/92. Shown under its head, because there is no sprite for a fusion here. | Flamethrower Moonblast Aura Sphere Solar Beam |
 | Venusaur Lv 51 · Chlorophyll · Charcoal Venumortar — a fusion: body Magmortar, head Venusaur. Grass/Fire, 78/90/71/107/97/81. Shown under its head, because there is no sprite for a fusion here. | Fire Blast Solar Beam Thunderbolt Synthesis |
 | Talonflame Lv 51 · Stance Change · Leftovers Talonslash — a fusion: body Aegislash, head Talonflame. Fire/Ghost, 72/60/123/65/96/82. Shown under its head, because there is no sprite for a fusion here. | Shadow Claw Flame Charge Swords Dance King's Shield |
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.