Pokedex Randomizer

Phase 2 section

Pokemon Yellow Route 3 Walkthrough

Route 3 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

Push through the first long trainer route and reach the Mt. Moon Pokemon Center. 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

Route 3 and Mt. Moon Pokemon Center.

Wild rows4 Trainers8 Items0

Route plan

Route 3 is trainer-dense; rotate catches so one Pokemon does not absorb every fight.

Wild Pokemon

Area / subarea Game Method Pokemon Level Odds Condition / requirement
Route 3YellowTall grass / cave floor Spearow Yellow sprite Spearow 8-1255%Encounter rate 20; no time-of-day split in Yellow.
Route 3YellowTall grass / cave floor Mankey Yellow sprite Mankey 915%Encounter rate 20; no time-of-day split in Yellow.
Route 3YellowTall grass / cave floor Sandshrew Yellow sprite Sandshrew 8-1015%Encounter rate 20; no time-of-day split in Yellow.
Route 3YellowTall grass / cave floor Rattata Yellow sprite Rattata 10-1215%Encounter rate 20; no time-of-day split in Yellow.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Route 3 (10, 6)Bug Catcher trainer spriteBug CatcherParty #4
Caterpie Yellow sprite Caterpie Lv. 10 Weedle Yellow sprite Weedle Lv. 10 Caterpie Yellow sprite Caterpie Lv. 10
$100One-time trainer; no rematch in Yellow.
2. Route 3 (14, 4)Youngster trainer spriteYoungsterParty #1
Rattata Yellow sprite Rattata Lv. 11 Ekans Yellow sprite Ekans Lv. 11
$165One-time trainer; no rematch in Yellow.
3. Route 3 (16, 9)Lass trainer spriteLassParty #1
Pidgey Yellow sprite Pidgey Lv. 9 Pidgey Yellow sprite Pidgey Lv. 9
$135One-time trainer; no rematch in Yellow.
4. Route 3 (19, 5)Bug Catcher trainer spriteBug CatcherParty #5
Weedle Yellow sprite Weedle Lv. 9 Kakuna Yellow sprite Kakuna Lv. 9 Caterpie Yellow sprite Caterpie Lv. 9 Metapod Yellow sprite Metapod Lv. 9
$90One-time trainer; no rematch in Yellow.
5. Route 3 (23, 4)Lass trainer spriteLassParty #2
Rattata Yellow sprite Rattata Lv. 10 Nidoran M Yellow sprite Nidoran M Lv. 10
$150One-time trainer; no rematch in Yellow.
6. Route 3 (22, 9)Youngster trainer spriteYoungsterParty #2
Spearow Yellow sprite Spearow Lv. 14
$210One-time trainer; no rematch in Yellow.
7. Route 3 (24, 6)Bug Catcher trainer spriteBug CatcherParty #6
Caterpie Yellow sprite Caterpie Lv. 11 Metapod Yellow sprite Metapod Lv. 11
$110One-time trainer; no rematch in Yellow.
8. Route 3 (33, 10)Lass trainer spriteLassParty #3
Jigglypuff Yellow sprite Jigglypuff Lv. 14
$210One-time trainer; no rematch in Yellow.

Items And Hidden Items

No visible, hidden, or scripted item rewards are listed for this section.

Boss Strategy

No boss or Rival branch is attached to this section.

Completion Checklist

  • Defeat all Route 3 trainers.
  • Buy Magikarp if you want an early Gyarados project.
  • Heal before entering Mt. Moon.
  • 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 has no day/night encounter column; tables use Game, Method, and Condition instead.

Related articles

Pokemon Yellow Walkthrough HubPhase 2: Cascade BadgePrevious: Pewter City and Pewter GymNext: Mt. Moon