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.
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.
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
Each area below has its own table, split by encounter method. Standard wild rows merge every slot for a species into one line with a combined rate, and FireRed/LeafGreen exclusives are marked with FR/LG game chips; there is no time-of-day split in these remakes. Underlying slot odds: grass and cave 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; Super Rod 40/40/15/4/1. Gift, static, trade, and prize Pokemon keep their own labeled rows.
Route 5
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| Grass / cave floor | ||||
 Pidgey | FRLG | 13 or 15-16 | 40% | — |
 Meowth | FRLG | 10 or 12 or 14 or 16 | 35% | — |
 Bellsprout | FRLG | 13 or 15-16 | 25% | — |
 Oddish | FRLG | 13 or 15-16 | 25% | — |
Route 6
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| Grass / cave floor | ||||
| Pidgey | FRLG | 13 or 15-16 | 40% | — |
| Meowth | FRLG | 10 or 12 or 14 or 16 | 35% | — |
| Bellsprout | FRLG | 13 or 15-16 | 25% | — |
| Oddish | FRLG | 13 or 15-16 | 25% | — |
| Surfing | ||||
 Psyduck | FRLG | 20-40 | 100% | — |
 Slowpoke | FRLG | 20-40 | 100% | — |
| Fishing — Old Rod | ||||
 Magikarp | FRLG | 5 | 100% | — |
| Fishing — Good Rod | ||||
 Poliwag | FRLG | 5-15 | 60% | — |
 Goldeen | FRLG | 5-15 | 20% | — |
| Magikarp | FRLG | 5-15 | 20% | — |
| Fishing — Super Rod | ||||
| Poliwag | FRLG | 15-25 | 40% | — |
 Poliwhirl | FRLG | 20-30 | 40% | — |
 Gyarados | FRLG | 15-25 | 15% | — |
| Psyduck | FRLG | 15-35 | 5% | — |
| Slowpoke | FRLG | 15-35 | 5% | — |
Underground Path North Entrance
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| In-game trade | ||||
 Nidoran F | Version split | Trade level | Trade | Trade Nidoran M and Nidoran F; received Pokemon may hold Tinymushroom. |
 Nidoran M | Version split | Trade level | Trade | Trade Nidoran M and Nidoran F; received Pokemon may hold Tinymushroom. |
Vermilion City
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| Surfing | ||||
 Tentacool | FRLG | 5-40 | 100% | — |
| Fishing — Old Rod | ||||
| Magikarp | FRLG | 5 | 100% | — |
| Fishing — Good Rod | ||||
 Horsea | FRLG | 5-15 | 60% | — |
 Krabby | FRLG | 5-15 | 60% | — |
| Horsea | FRLG | 5-15 | 20% | — |
| Krabby | FRLG | 5-15 | 20% | — |
| Magikarp | FRLG | 5-15 | 20% | — |
| Fishing — Super Rod | ||||
| Horsea | FRLG | 15-25 | 40% | — |
| Krabby | FRLG | 15-25 | 40% | — |
 Shellder | FRLG | 15-25 | 40% | — |
 Staryu | FRLG | 15-25 | 40% | — |
| Gyarados | FRLG | 15-25 | 15% | — |
| Horsea | FRLG | 25-35 | 4% | — |
| Psyduck | FRLG | 25-35 | 1% | — |
| Slowpoke | FRLG | 25-35 | 1% | — |
Vermilion City House 2
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| In-game trade | ||||
 Farfetch'd | FRLG | Trade level | Trade | Trade Spearow; received Pokemon may hold Stick. |
Trainers
| Trainer | Area / position | Team | Reward | Notes |
|---|---|---|---|---|
 KeigoBug Catcher | Route 6 | $192 | VS Seeker/rematch-capable. Map tile (3, 16); sight 5. | |
 RickyCamper | Route 6 | $400 | VS Seeker/rematch-capable. Map tile (12, 21); sight 0. | |
 NancyPicnicker | Route 6 | $320 | VS Seeker/rematch-capable. Map tile (13, 21); sight 0. | |
| ElijahBug Catcher | Route 6 | $240 | VS Seeker/rematch-capable. Map tile (20, 25); sight 3. | |
| IsabellePicnicker | Route 6 | $320 | VS Seeker/rematch-capable. Map tile (13, 32); sight 3. | |
| JeffCamper | Route 6 | $320 | VS Seeker/rematch-capable. Map tile (13, 33); sight 3. |
Items And Hidden Items
| Item | Type | Area / direction | Coordinate | Requirement |
|---|---|---|---|---|
| Rare Candy | Hidden item | Route 6: Hidden in Route 6; press A on the tile around (19, 5). | 19, 5 | Use the Itemfinder or check the described tile. |
| Sitrus Berry | Hidden item | Route 6: Hidden in Route 6; press A on the tile around (5, 5). | 5, 5 | Use the Itemfinder or check the described tile. |
| Antidote | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (5, 6). | 5, 6 | Use the Itemfinder or check the described tile. |
| Awakening | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (1, 24). | 1, 24 | Use the Itemfinder or check the described tile. |
| Burn Heal | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (2, 57). | 2, 57 | Use the Itemfinder or check the described tile. |
| Ether | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (3, 39). | 3, 39 | Use the Itemfinder or check the described tile. |
| Ice Heal | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (6, 53). | 6, 53 | Use the Itemfinder or check the described tile. |
| Paralyze Heal | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (3, 15). | 3, 15 | Use the Itemfinder or check the described tile. |
| Potion | Hidden item | Underground Path North South Tunnel: Hidden in Underground Path North South Tunnel; press A on the tile around (5, 30). | 5, 30 | Use the Itemfinder or check the described tile. |
| Max Ether | Hidden item | Vermilion City: Hidden in Vermilion City; press A on the tile around (14, 11). | 14, 11 | Use the Itemfinder or check the described tile. |
| Bike Voucher | Gift/scripted | Vermilion 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, andgraphics/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.