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.
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.
Route plan
Route 3 is trainer-dense; rotate catches so one Pokemon does not absorb every fight.
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.
| Pokémon | Levels | Rate | Notes |
|---|---|---|---|
| Tall grass / cave floor | |||
 Spearow | 8-12 | 55% | — |
 Mankey | 9 | 15% | — |
 Sandshrew | 8-10 | 15% | — |
 Rattata | 10-12 | 15% | — |
Trainers
| Route order | Trainer | Team | Reward | Optional / rematch note |
|---|---|---|---|---|
| 1. Route 3 (10, 6) |  Bug CatcherParty #4 | $100 | One-time trainer; no rematch in Yellow. | |
| 2. Route 3 (14, 4) |  YoungsterParty #1 | $165 | One-time trainer; no rematch in Yellow. | |
| 3. Route 3 (16, 9) |  LassParty #1 | $135 | One-time trainer; no rematch in Yellow. | |
| 4. Route 3 (19, 5) | Bug CatcherParty #5 | $90 | One-time trainer; no rematch in Yellow. | |
| 5. Route 3 (23, 4) | LassParty #2 | $150 | One-time trainer; no rematch in Yellow. | |
| 6. Route 3 (22, 9) | YoungsterParty #2 | $210 | One-time trainer; no rematch in Yellow. | |
| 7. Route 3 (24, 6) | Bug CatcherParty #6 | $110 | One-time trainer; no rematch in Yellow. | |
| 8. Route 3 (33, 10) | LassParty #3 | $210 | One-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 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.