Phase 1 section
Pokemon Red and Blue Route 1, Viridian City, and Route 22 Walkthrough
Boulder Badge Route 1, Viridian City, and Route 22 section for the Pokemon Red and Blue walkthrough with wild Pokemon, trainers, items, hidden items, coordinates, and boss strategy.
Stock up, catch early Route 1/22 Pokemon, and optionally fight the early Rival west of Viridian. This page is a standalone section for Phase 1: Boulder Badge, with source-backed Red/Blue encounter, trainer, item, hidden item, and boss data.
Source maps
Route 1, Viridian City, and Route 22.
Route plan
Use Route 1 for first catches, buy supplies in Viridian after the parcel errand, then test your team on Route 22 before the forest.
Wild Pokemon
Each area below has its own table, split by encounter method. Red/Blue has no time-of-day mechanic, so every method uses a single rate column, and the R/B chips show which version each row applies to. Tall grass, cave, and Surf rates merge every base slot for a species out of the Gen I ten-slot table: 51/256, 51/256, 39/256, 25/256, 25/256, 25/256, 13/256, 13/256, 11/256, and 3/256. Fishing, gift, trade, prize, and static rows keep their own labeled rates.
Route 1
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| Tall grass / cave floor | ||||
 Pidgey | RB | 2-5 | 50% | — |
 Rattata | RB | 2-4 | 50% | — |
Route 22
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| Tall grass / cave floor | ||||
| Rattata | RB | 2-4 | 45% | — |
 Nidoran M | RB | 2-4 | 39% | — |
 Nidoran F | RB | 2-4 | 39% | — |
 Spearow | RB | 3-5 | 10% | — |
| Nidoran F | RB | 3-4 | 5.5% | — |
| Nidoran M | RB | 3-4 | 5.5% | — |
| Fishing — Old Rod | ||||
 Magikarp | RB | 5 | 100% | Any fishable water tile. |
| Fishing — Good Rod | ||||
 Goldeen | RB | 10 | 50% | Any fishable water tile after getting Good Rod. |
 Poliwag | RB | 10 | 50% | Any fishable water tile after getting Good Rod. |
| Fishing — Super Rod | ||||
| Goldeen | RB | 15 | 50.0% | Super Rod group 2. |
| Poliwag | RB | 15 | 50.0% | Super Rod group 2. |
Viridian City
| Pokémon | Games | Levels | Rate | Notes |
|---|---|---|---|---|
| Fishing — Old Rod | ||||
| Magikarp | RB | 5 | 100% | Any fishable water tile. |
| Fishing — Good Rod | ||||
| Goldeen | RB | 10 | 50% | Any fishable water tile after getting Good Rod. |
| Poliwag | RB | 10 | 50% | Any fishable water tile after getting Good Rod. |
| Fishing — Super Rod | ||||
 Tentacool | RB | 15 | 50.0% | Super Rod group 1. |
| Poliwag | RB | 15 | 50.0% | Super Rod group 1. |
Trainers
No regular trainers are sourced for this section.
Items And Hidden Items
| Item | Type | Area / direction | Coordinate | Requirement |
|---|---|---|---|---|
| Potion | Hidden item | Hidden on the searchable tile at (14, 4) in Viridian City. | (14, 4) | Press A on the hidden tile or use the Itemfinder nearby. |
| Potion | Gift | Talk to the Poke Mart clerk on Route 1. | - | Talk to the Poke Mart clerk on Route 1. |
| TM42 Dream Eater | Gift | Requires Cut; talk to the sleeping man in west Viridian later. | - | Requires Cut; talk to the sleeping man in west Viridian later. |
Boss Strategy
| Boss / branch | Team | Reward | Danger notes | Practical counters |
|---|---|---|---|---|
 RivalRoute 22 early Rival if you chose Charmander | $280 | Pidgey plus a starter can overwhelm an underleveled team before Brock. | Plan around the rival's Squirtle line. Keep status, a fresh switch, and a direct answer to Pidgey/Pidgeotto before committing your starter. | |
| RivalRoute 22 early Rival if you chose Squirtle | $280 | Pidgey plus a starter can overwhelm an underleveled team before Brock. | Plan around the rival's Bulbasaur line. Keep status, a fresh switch, and a direct answer to Pidgey/Pidgeotto before committing your starter. | |
| RivalRoute 22 early Rival if you chose Bulbasaur | $280 | Pidgey plus a starter can overwhelm an underleveled team before Brock. | Plan around the rival's Charmander line. Keep status, a fresh switch, and a direct answer to Pidgey/Pidgeotto before committing your starter. |
Completion Checklist
- Catch Pidgey/Rattata basics and Route 22 version exclusives.
- Pick up the hidden Viridian Potion.
- Fight or skip the optional Route 22 Rival before Brock.
- Verify the wild table's version splits 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/pokered: 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.
- Red/Blue has no day/night encounter column; tables group each area by encounter method with R/B game chips and a single merged Rate column.