Route 4 Pokémon Yellow · Route
Route 4 sits on either side of Mt. Moon, with the Pokémon Center at the western end and the road down to Cerulean City on the eastern end. You pass through it after crossing Route 3 and again when you exit the cave. It shares its wild Pokémon with Route 3 and has a few items and a Magikarp salesman.
- Wild Pokémon
- 6
- Items
- 2
- Trainers
- 1
Connects to: Cerulean City · Route 3 · Mt. Moon
Position on the Kanto town map
Gift and special Pokémon
Magikarp Lv. 5A salesman in the Pokémon Center by Mt. Moon sells a Magikarp for ₽500.
Wild Pokémon
| Pokémon | Type | Lv. | Chance |
|---|---|---|---|
 Spearow | Normal | 8–12 | 55.1% |
 Mankey | Fighting | 9 | 15.2% |
 Rattata | Normal | 10–12 | 14.8% |
 Sandshrew | Ground | 8–10 | 14.8% |
| Rod | Pokémon | Lv. | Chance |
|---|---|---|---|
| Old Rod | Magikarp | 5 | 100% |
| Good Rod |  Goldeen | 10 | 50% |
 Poliwag | 10 | 50% | |
| Super Rod | Goldeen | 20–30 | 89.5% |
 Seaking | 30 | 10.5% |
Grass, cave and surfing chances are the Generation I encounter slots (10 slots weighted 51, 51, 39, 25, 25, 25, 13, 13, 11 and 3 out of 256); the Super Rod picks from four slots weighted 102, 76, 51 and 27, the Good Rod is 50/50 and the Old Rod always hooks a level 5 Magikarp. Where to find every Pokémon.
Trainers
| Trainer | Pokémon | Prize |
|---|---|---|
 Lass |  Paras 31Paras 31 Parasect 31 | ₽465 |
Prize money is the trainer class’s base amount times the level of their last Pokémon.
Items
| Item | How |
|---|---|
| TM04 Whirlwind | Item ball |
| Great Ball | Hidden |
Hidden items need the Itemfinder or a lucky press of A on the right tile.
Tips
- A salesman in the Pokémon Center sells a Magikarp for 500 yen, which is expensive but gives you a Gyarados later.
- TM04 Whirlwind is lying in the open here, and there is a hidden Great Ball.
- The wild Pokémon match Route 3, so Mankey and Sandshrew are also here.
- Heal at the Pokémon Center before entering Mt. Moon, where Zubat and Rocket Grunts wait.
- The Lass with a Paras line on this route is well above the level of the other early trainers, so be prepared if you reach her.
Walkthrough: Part 3: Route 3, Mt. Moon and Cerulean City
FAQ
Where do I buy Magikarp in Pokémon Yellow?
A salesman in the Pokémon Center near Mt. Moon sells one for 500 yen.
What TM is on Route 4?
TM04 Whirlwind is in an item ball on the route.
What wild Pokémon are on Route 4?
Spearow, Mankey, Rattata and Sandshrew in the grass, and Goldeen and Seaking when fishing.
How do I get from Route 4 to Cerulean City?
Cross Mt. Moon and follow the road east from the cave exit to Cerulean City.
What Pokémon can you catch in Route 4 in Pokémon Yellow?
6 species: Spearow, Mankey, Rattata, Sandshrew, Goldeen, Seaking. The tables show levels and encounter chances from the game data.
What items are in Route 4?
2, including TM04 Whirlwind, Great Ball.
Sources & picture credits
- Route 4 (Bulbapedia)
- pret/pokeyellow (decompiled game data)
- Map: Kanto_Route_4_RBY.png
- Town map: Kanto_Town_Map_RGBY.png
Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon, encounter rates, items, trainers, gifts and shops come from the pret/pokeyellow decompilation of the English game (pret/pokeyellow e89ead154b). Maps and sprites © Nintendo / Creatures / GAME FREAK, archived from the Bulbagarden Archives (listed on the image gallery).