Phase 3 section

Pokemon FireRed and LeafGreen Routes 5 and 6, Underground Path, and Vermilion Walkthrough

Routes 5 and 6, Underground Path, and Vermilion section for the FireRed and LeafGreen walkthrough with source-backed wild Pokemon, trainers, items, hidden items, bosses, and route notes.

By Damodar Sharma Updated June 24, 2026 Walkthrough

Move south from Cerulean, use the Underground Path, reach Vermilion, collect the Bike Voucher and Old Rod, and pick up early trades. This page is a standalone section for Phase 3: Thunder Badge, with FireRed/LeafGreen source data for encounters, trainers, items, hidden items, and boss routing.

Source maps

Route 5, Route 5 Pokemon Day Care, Route 5 South Entrance, Underground Path North Entrance, Underground Path North South Tunnel, Underground Path South Entrance, Route 6, Route 6 North Entrance, Vermilion City, Vermilion City House 1, Vermilion City House 2, Vermilion City House 3, Vermilion City Pokemon Fan Club, and Vermilion City Pokemon Center 1F, and 1 more map files.

Wild rows75 Trainers6 Items11

Route plan

Use this phase to normalize levels before S.S. Anne. The VS Seeker arrives in Vermilion's Pokemon Center and changes rematch routing for the rest of the game.

Route Notes

  • The Farfetch'd trade in Vermilion is useful because it can learn Cut and Fly.

Wild Pokemon

Area / subareaGameMethodPokemonLevelOddsCondition / requirement
Route 5LeafGreenGrass/cave floor Bellsprout FireRed and LeafGreen sprite Bellsprout Lv. 1310%Route 5 Grass/cave floor slot.
Route 5LeafGreenGrass/cave floor Bellsprout FireRed and LeafGreen sprite Bellsprout Lv. 1510%Route 5 Grass/cave floor slot.
Route 5LeafGreenGrass/cave floor Bellsprout FireRed and LeafGreen sprite Bellsprout Lv. 165%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 1020%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 1210%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 144%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 161%Route 5 Grass/cave floor slot.
Route 5FireRedGrass/cave floor Oddish FireRed and LeafGreen sprite Oddish Lv. 1310%Route 5 Grass/cave floor slot.
Route 5FireRedGrass/cave floor Oddish FireRed and LeafGreen sprite Oddish Lv. 1510%Route 5 Grass/cave floor slot.
Route 5FireRedGrass/cave floor Oddish FireRed and LeafGreen sprite Oddish Lv. 165%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 1320%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 1510%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 165%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 154%Route 5 Grass/cave floor slot.
Route 5FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 151%Route 5 Grass/cave floor slot.
Route 6FireRed/LeafGreenGood Rod Goldeen FireRed and LeafGreen sprite Goldeen Lv. 5-1520%Route 6 Good Rod table.
Route 6FireRed/LeafGreenGood Rod Magikarp FireRed and LeafGreen sprite Magikarp Lv. 5-1520%Route 6 Good Rod table.
Route 6FireRed/LeafGreenGood Rod Poliwag FireRed and LeafGreen sprite Poliwag Lv. 5-1560%Route 6 Good Rod table.
Route 6LeafGreenGrass/cave floor Bellsprout FireRed and LeafGreen sprite Bellsprout Lv. 1310%Route 6 Grass/cave floor slot.
Route 6LeafGreenGrass/cave floor Bellsprout FireRed and LeafGreen sprite Bellsprout Lv. 1510%Route 6 Grass/cave floor slot.
Route 6LeafGreenGrass/cave floor Bellsprout FireRed and LeafGreen sprite Bellsprout Lv. 165%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 1020%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 1210%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 144%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Meowth FireRed and LeafGreen sprite Meowth Lv. 161%Route 6 Grass/cave floor slot.
Route 6FireRedGrass/cave floor Oddish FireRed and LeafGreen sprite Oddish Lv. 1310%Route 6 Grass/cave floor slot.
Route 6FireRedGrass/cave floor Oddish FireRed and LeafGreen sprite Oddish Lv. 1510%Route 6 Grass/cave floor slot.
Route 6FireRedGrass/cave floor Oddish FireRed and LeafGreen sprite Oddish Lv. 165%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 1320%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 1510%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 165%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 154%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenGrass/cave floor Pidgey FireRed and LeafGreen sprite Pidgey Lv. 151%Route 6 Grass/cave floor slot.
Route 6FireRed/LeafGreenOld Rod Magikarp FireRed and LeafGreen sprite Magikarp Lv. 570%Route 6 Old Rod table.
Route 6FireRed/LeafGreenOld Rod Magikarp FireRed and LeafGreen sprite Magikarp Lv. 530%Route 6 Old Rod table.
Route 6FireRed/LeafGreenSuper Rod Gyarados FireRed and LeafGreen sprite Gyarados Lv. 15-2515%Route 6 Super Rod table.
Route 6FireRed/LeafGreenSuper Rod Poliwag FireRed and LeafGreen sprite Poliwag Lv. 15-2540%Route 6 Super Rod table.
Route 6FireRed/LeafGreenSuper Rod Poliwhirl FireRed and LeafGreen sprite Poliwhirl Lv. 20-3040%Route 6 Super Rod table.
Route 6FireRedSuper Rod Psyduck FireRed and LeafGreen sprite Psyduck Lv. 15-254%Route 6 Super Rod table.
Route 6FireRedSuper Rod Psyduck FireRed and LeafGreen sprite Psyduck Lv. 25-351%Route 6 Super Rod table.
Route 6LeafGreenSuper Rod Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 15-254%Route 6 Super Rod table.
Route 6LeafGreenSuper Rod Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 25-351%Route 6 Super Rod table.
Route 6FireRedSurf Psyduck FireRed and LeafGreen sprite Psyduck Lv. 20-2560%Route 6 Surf slot.
Route 6FireRedSurf Psyduck FireRed and LeafGreen sprite Psyduck Lv. 20-2530%Route 6 Surf slot.
Route 6FireRedSurf Psyduck FireRed and LeafGreen sprite Psyduck Lv. 25-305%Route 6 Surf slot.
Route 6FireRedSurf Psyduck FireRed and LeafGreen sprite Psyduck Lv. 30-354%Route 6 Surf slot.
Route 6FireRedSurf Psyduck FireRed and LeafGreen sprite Psyduck Lv. 35-401%Route 6 Surf slot.
Route 6LeafGreenSurf Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 20-2560%Route 6 Surf slot.
Route 6LeafGreenSurf Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 20-2530%Route 6 Surf slot.
Route 6LeafGreenSurf Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 25-305%Route 6 Surf slot.
Route 6LeafGreenSurf Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 30-354%Route 6 Surf slot.
Route 6LeafGreenSurf Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 35-401%Route 6 Surf slot.
Underground Path North EntranceVersion splitIn-game trade Nidoran F FireRed and LeafGreen sprite Nidoran F Trade levelTradeTrade Nidoran M and Nidoran F; received Pokemon may hold Tinymushroom.
Underground Path North EntranceVersion splitIn-game trade Nidoran M FireRed and LeafGreen sprite Nidoran M Trade levelTradeTrade Nidoran M and Nidoran F; received Pokemon may hold Tinymushroom.
Vermilion CityFireRedGood Rod Horsea FireRed and LeafGreen sprite Horsea Lv. 5-1560%Vermilion City Good Rod table.
Vermilion CityLeafGreenGood Rod Horsea FireRed and LeafGreen sprite Horsea Lv. 5-1520%Vermilion City Good Rod table.
Vermilion CityFireRedGood Rod Krabby FireRed and LeafGreen sprite Krabby Lv. 5-1520%Vermilion City Good Rod table.
Vermilion CityLeafGreenGood Rod Krabby FireRed and LeafGreen sprite Krabby Lv. 5-1560%Vermilion City Good Rod table.
Vermilion CityFireRed/LeafGreenGood Rod Magikarp FireRed and LeafGreen sprite Magikarp Lv. 5-1520%Vermilion City Good Rod table.
Vermilion CityFireRed/LeafGreenOld Rod Magikarp FireRed and LeafGreen sprite Magikarp Lv. 570%Vermilion City Old Rod table.
Vermilion CityFireRed/LeafGreenOld Rod Magikarp FireRed and LeafGreen sprite Magikarp Lv. 530%Vermilion City Old Rod table.
Vermilion CityFireRed/LeafGreenSuper Rod Gyarados FireRed and LeafGreen sprite Gyarados Lv. 15-2515%Vermilion City Super Rod table.
Vermilion CityFireRedSuper Rod Horsea FireRed and LeafGreen sprite Horsea Lv. 15-2540%Vermilion City Super Rod table.
Vermilion CityFireRed/LeafGreenSuper Rod Horsea FireRed and LeafGreen sprite Horsea Lv. 25-354%Vermilion City Super Rod table.
Vermilion CityLeafGreenSuper Rod Krabby FireRed and LeafGreen sprite Krabby Lv. 15-2540%Vermilion City Super Rod table.
Vermilion CityFireRedSuper Rod Psyduck FireRed and LeafGreen sprite Psyduck Lv. 25-351%Vermilion City Super Rod table.
Vermilion CityFireRedSuper Rod Shellder FireRed and LeafGreen sprite Shellder Lv. 15-2540%Vermilion City Super Rod table.
Vermilion CityLeafGreenSuper Rod Slowpoke FireRed and LeafGreen sprite Slowpoke Lv. 25-351%Vermilion City Super Rod table.
Vermilion CityLeafGreenSuper Rod Staryu FireRed and LeafGreen sprite Staryu Lv. 15-2540%Vermilion City Super Rod table.
Vermilion CityFireRed/LeafGreenSurf Tentacool FireRed and LeafGreen sprite Tentacool Lv. 5-1060%Vermilion City Surf slot.
Vermilion CityFireRed/LeafGreenSurf Tentacool FireRed and LeafGreen sprite Tentacool Lv. 10-2030%Vermilion City Surf slot.
Vermilion CityFireRed/LeafGreenSurf Tentacool FireRed and LeafGreen sprite Tentacool Lv. 20-305%Vermilion City Surf slot.
Vermilion CityFireRed/LeafGreenSurf Tentacool FireRed and LeafGreen sprite Tentacool Lv. 30-354%Vermilion City Surf slot.
Vermilion CityFireRed/LeafGreenSurf Tentacool FireRed and LeafGreen sprite Tentacool Lv. 35-401%Vermilion City Surf slot.
Vermilion City House 2FireRed/LeafGreenIn-game trade Farfetch'd FireRed and LeafGreen sprite Farfetch'd Trade levelTradeTrade Spearow; received Pokemon may hold Stick.

Trainers

TrainerArea / positionTeamRewardNotes
Bug Catcher Keigo trainer spriteKeigoBug CatcherRoute 6$192VS Seeker/rematch-capable. Map tile (3, 16); sight 5.
Camper Ricky trainer spriteRickyCamperRoute 6$400VS Seeker/rematch-capable. Map tile (12, 21); sight 0.
Picnicker Nancy trainer spriteNancyPicnickerRoute 6$320VS Seeker/rematch-capable. Map tile (13, 21); sight 0.
Bug Catcher Elijah trainer spriteElijahBug CatcherRoute 6$240VS Seeker/rematch-capable. Map tile (20, 25); sight 3.
Picnicker Isabelle trainer spriteIsabellePicnickerRoute 6$320VS Seeker/rematch-capable. Map tile (13, 32); sight 3.
Camper Jeff trainer spriteJeffCamperRoute 6$320VS Seeker/rematch-capable. Map tile (13, 33); sight 3.

Items And Hidden Items

ItemTypeArea / directionCoordinateRequirement
Rare CandyHidden itemRoute 6: Hidden in Route 6; press A on the tile around (19, 5).19, 5Use the Itemfinder or check the described tile.
Sitrus BerryHidden itemRoute 6: Hidden in Route 6; press A on the tile around (5, 5).5, 5Use the Itemfinder or check the described tile.
AntidoteHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (5, 6).5, 6Use the Itemfinder or check the described tile.
AwakeningHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (1, 24).1, 24Use the Itemfinder or check the described tile.
Burn HealHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (2, 57).2, 57Use the Itemfinder or check the described tile.
EtherHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (3, 39).3, 39Use the Itemfinder or check the described tile.
Ice HealHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (6, 53).6, 53Use the Itemfinder or check the described tile.
Paralyze HealHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (3, 15).3, 15Use the Itemfinder or check the described tile.
PotionHidden itemUnderground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (5, 30).5, 30Use the Itemfinder or check the described tile.
Max EtherHidden itemVermilion City: Hidden in Vermilion City; press A on the tile around (14, 11).14, 11Use the Itemfinder or check the described tile.
Bike VoucherGift/scriptedVermilion City Pokemon Fan Club: Scripted reward from Event Script Chairman Story.-Scripted reward from Event Script Chairman Story.

Boss Strategy

No major boss card is assigned to this section.

Completion Checklist

  • Clear the route plan for Routes 5 and 6, Underground Path, and Vermilion before moving to the next section.
  • Check the wild table for FireRed/LeafGreen version splits, rod methods, Surf, Rock Smash, static Pokemon, gifts, trades, and event-only rows when present.
  • Defeat or intentionally skip optional trainers; use VS Seeker notes where rematches are available.
  • Sweep visible and hidden item rows, including key items, HMs, TMs, berries, fossils, and scripted gifts.
  • Review boss cards and heal before any Rival, Gym Leader, Rocket Admin, Elite Four, Champion, or legendary encounter listed above.

Sources

  • pret/pokefirered: src/data/wild_encounters.json, src/data/trainers.h, src/data/trainer_parties.h, data/maps/*/map.json, data/maps/*/scripts.inc, data/scripts/item_ball_scripts.inc, and graphics/trainers/front_pics.
  • Encounter odds use the FR/LG slot rates: land 20/20/10/10/10/10/5/5/4/4/1/1, Surf and Rock Smash 60/30/5/4/1, Old Rod 70/30, Good Rod 60/20/20, and Super Rod 40/40/15/4/1.
  • Generation III mechanics apply throughout: abilities, natures, held items, double battles, and post-game National Dex data are active in these remakes.