Pokedex Randomizer

Phase 2 section

Pokemon Yellow Cerulean City, Route 24, and Route 25 Walkthrough

Cerulean City, Route 24, and Route 25 section for the Pokemon Yellow walkthrough with wild Pokemon, trainers, items, hidden items, coordinates, and boss strategy.

By Damodar Sharma Updated June 23, 2026 Walkthrough

Beat the north bridge Rival, clear Nugget Bridge and Route 25, help Bill, then recover Dig from the Rocket. This page is a standalone section for Phase 2: Cascade Badge, with source-backed Yellow encounter, trainer, item, hidden item, and boss data.

Source maps

Cerulean City, Cerulean Melanies House, Bike Shop, Route 24, Route 25, Bills House, and Cerulean Trashed House.

Wild rows33 Trainers17 Items9

Route plan

Route 24/25 opens strong Grass options and several trainer checks before Misty.

Wild Pokemon

Each area below has its own table, split into encounter method bands: tall grass / cave floor, Surfing, the three rods, then gift, trade, prize, and static rows. Grass and Surf rows merge every Gen I wild slot for a species and show the combined odds out of 256 (slot rates 51/256, 51/256, 39/256, 25/256, 25/256, 25/256, 13/256, 13/256, 11/256, and 3/256). Generation I has no time-of-day split, so no rate varies with the clock; a — note means the row needs nothing beyond reaching the area.

Route 24

Route 24 wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Oddish Yellow sprite Oddish 12-1430%—
Bellsprout Yellow sprite Bellsprout 12-1430%—
Pidgey Yellow sprite Pidgey 13-1729%—
Venonat Yellow sprite Venonat 13-1610%—
Pidgeotto Yellow sprite Pidgeotto 171.2%—
Fishing — Old Rod
Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Fishing — Good Rod
Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Fishing — Super Rod
Goldeen Yellow sprite Goldeen 2025%Yellow Super Rod slot table.
Goldeen Yellow sprite Goldeen 2525%Yellow Super Rod slot table.
Goldeen Yellow sprite Goldeen 3025%Yellow Super Rod slot table.
Seaking Yellow sprite Seaking 3025%Yellow Super Rod slot table.
Gift
Charmander Yellow sprite Charmander 10GiftAccept Charmander from Damian on Route 24 north of Nugget Bridge.

Route 25

Route 25 wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Oddish Yellow sprite Oddish 12-1430%—
Bellsprout Yellow sprite Bellsprout 12-1430%—
Pidgey Yellow sprite Pidgey 13-1729%—
Venonat Yellow sprite Venonat 13-1610%—
Pidgeotto Yellow sprite Pidgeotto 171.2%—
Fishing — Old Rod
Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Fishing — Good Rod
Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Fishing — Super Rod
Krabby Yellow sprite Krabby 1025%Yellow Super Rod slot table.
Krabby Yellow sprite Krabby 1525%Yellow Super Rod slot table.
Kingler Yellow sprite Kingler 1525%Yellow Super Rod slot table.
Kingler Yellow sprite Kingler 2525%Yellow Super Rod slot table.

Cerulean City

Cerulean City wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Fishing — Old Rod
Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Fishing — Good Rod
Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Fishing — Super Rod
Goldeen Yellow sprite Goldeen 2525%Yellow Super Rod slot table.
Goldeen Yellow sprite Goldeen 3025%Yellow Super Rod slot table.
Seaking Yellow sprite Seaking 3025%Yellow Super Rod slot table.
Seaking Yellow sprite Seaking 4025%Yellow Super Rod slot table.

Cerulean Melanies House

Cerulean Melanies House wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Gift
Bulbasaur Yellow sprite Bulbasaur 10GiftMelanie gives Bulbasaur when starter Pikachu's happiness is at least 147.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Cerulean City (30, 8)Rocket trainer spriteRocketParty #5
Machop Yellow sprite Machop Lv. 17 Drowzee Yellow sprite Drowzee Lv. 17
$510One-time trainer; no rematch in Yellow.
2. Route 24 (11, 15)Rocket trainer spriteRocketParty #6
Ekans Yellow sprite Ekans Lv. 15 Zubat Yellow sprite Zubat Lv. 15
$450One-time trainer; no rematch in Yellow.
3. Route 24 (5, 20)Jr. Trainer M trainer spriteJr. Trainer MParty #2
Rattata Yellow sprite Rattata Lv. 14 Ekans Yellow sprite Ekans Lv. 14
$280One-time trainer; no rematch in Yellow.
4. Route 24 (11, 19)Jr. Trainer M trainer spriteJr. Trainer MParty #3
Mankey Yellow sprite Mankey Lv. 18
$360One-time trainer; no rematch in Yellow.
5. Route 24 (10, 22)Lass trainer spriteLassParty #7
Pidgey Yellow sprite Pidgey Lv. 16 Nidoran F Yellow sprite Nidoran F Lv. 16
$240One-time trainer; no rematch in Yellow.
6. Route 24 (11, 25)Youngster trainer spriteYoungsterParty #4
Rattata Yellow sprite Rattata Lv. 14 Ekans Yellow sprite Ekans Lv. 14 Zubat Yellow sprite Zubat Lv. 14
$210One-time trainer; no rematch in Yellow.
7. Route 24 (10, 28)Lass trainer spriteLassParty #8
Pidgey Yellow sprite Pidgey Lv. 14 Nidoran F Yellow sprite Nidoran F Lv. 14
$210One-time trainer; no rematch in Yellow.
8. Route 24 (11, 31)Bug Catcher trainer spriteBug CatcherParty #9
Caterpie Yellow sprite Caterpie Lv. 14 Weedle Yellow sprite Weedle Lv. 14
$140One-time trainer; no rematch in Yellow.
9. Route 25 (14, 2)Youngster trainer spriteYoungsterParty #5
Rattata Yellow sprite Rattata Lv. 15 Spearow Yellow sprite Spearow Lv. 15
$225One-time trainer; no rematch in Yellow.
10. Route 25 (18, 5)Youngster trainer spriteYoungsterParty #6
Slowpoke Yellow sprite Slowpoke Lv. 17
$255One-time trainer; no rematch in Yellow.
11. Route 25 (24, 4)Jr. Trainer M trainer spriteJr. Trainer MParty #2
Rattata Yellow sprite Rattata Lv. 14 Ekans Yellow sprite Ekans Lv. 14
$280One-time trainer; no rematch in Yellow.
12. Route 25 (18, 8)Lass trainer spriteLassParty #9
Nidoran M Yellow sprite Nidoran M Lv. 15 Nidoran F Yellow sprite Nidoran F Lv. 15
$225One-time trainer; no rematch in Yellow.
13. Route 25 (32, 3)Youngster trainer spriteYoungsterParty #7
Ekans Yellow sprite Ekans Lv. 14 Sandshrew Yellow sprite Sandshrew Lv. 14
$210One-time trainer; no rematch in Yellow.
14. Route 25 (37, 4)Lass trainer spriteLassParty #10
Oddish Yellow sprite Oddish Lv. 13 Pidgey Yellow sprite Pidgey Lv. 13 Oddish Yellow sprite Oddish Lv. 13
$195One-time trainer; no rematch in Yellow.
15. Route 25 (8, 4)Hiker trainer spriteHikerParty #2
Machop Yellow sprite Machop Lv. 15 Geodude Yellow sprite Geodude Lv. 15
$525One-time trainer; no rematch in Yellow.
16. Route 25 (23, 9)Hiker trainer spriteHikerParty #3
Geodude Yellow sprite Geodude Lv. 13 Geodude Yellow sprite Geodude Lv. 13 Machop Yellow sprite Machop Lv. 13 Geodude Yellow sprite Geodude Lv. 13
$455One-time trainer; no rematch in Yellow.
17. Route 25 (13, 7)Hiker trainer spriteHikerParty #4
Onix Yellow sprite Onix Lv. 17
$595One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
TM45 Thunder WaveVisible item ballVisible item ball at (10, 5) in Route 24.(10, 5)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM19 Seismic TossVisible item ballVisible item ball at (22, 2) in Route 25.(22, 2)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Rare CandyHidden itemHidden on the searchable tile at (15, 8) in Cerulean City.(15, 8)Press A on the hidden tile or use the Itemfinder nearby.
EtherHidden itemHidden on the searchable tile at (38, 3) in Route 25.(38, 3)Press A on the hidden tile or use the Itemfinder nearby.
ElixerHidden itemHidden on the searchable tile at (10, 1) in Route 25.(10, 1)Press A on the hidden tile or use the Itemfinder nearby.
NuggetTrainer rewardDefeat the five Nugget Bridge trainers and the Rocket recruiter.-Defeat the five Nugget Bridge trainers and the Rocket recruiter.
S.S. TicketKey itemHelp Bill return to human form.-Help Bill return to human form.
TM28 DigRocket rewardDefeat the Rocket behind the burglarized house.-Defeat the Rocket behind the burglarized house.
TM11 BubbleBeamGym rewardDefeat Misty.-Defeat Misty.

Boss Strategy

Boss / branch Team Reward Danger notes Practical counters
Rival trainer spriteRivalCerulean City Rival
Spearow Yellow sprite Spearow Lv. 18 Sandshrew Yellow sprite Sandshrew Lv. 15 Rattata Yellow sprite Rattata Lv. 15 Eevee Yellow sprite Eevee Lv. 17
$595Spearow, Sandshrew, Rattata, and Eevee test whether your team is more than Pikachu.Pikachu handles Spearow, but use Water/Grass or Butterfree support for Sandshrew and keep enough HP for Eevee.

Completion Checklist

  • Win the Cerulean Rival fight.
  • Clear all Nugget Bridge trainers.
  • Get the S.S. Ticket from Bill.
  • Defeat the Rocket for TM28 Dig.
  • Verify the Yellow encounter rows before leaving if you are filling the Pokedex.
  • Use the item rows as a visible-item and hidden-item sweep before moving to the next section.

Sources

  • pret/pokeyellow: wild encounters, trainer parties, trainer money, map object events, hidden event items, rods, trades, and prize Pokemon.
  • Encounter odds aggregate the Gen I ten-slot rates: 51/256, 51/256, 39/256, 25/256, 25/256, 25/256, 13/256, 13/256, 11/256, and 3/256.
  • Yellow is a single-game guide with no day/night encounter split; each area table groups species under method bands with Levels, Rate, and Notes columns.

Related articles

Pokemon Yellow Walkthrough HubPhase 2: Cascade BadgePrevious: Route 4Next: Cerulean Gym