Phase 2 section
Pokemon Yellow Cerulean Gym Walkthrough
Cerulean Gym section for the Pokemon Yellow walkthrough with wild Pokemon, trainers, items, hidden items, coordinates, and boss strategy.
Earn the Cascade Badge from Misty. 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 Gym.
Wild rows0 Trainers3 Items0
Route plan
Bring Pikachu, Oddish/Bellsprout, Bulbasaur/Ivysaur, or another Starmie answer before challenging Misty.
Wild Pokemon
No wild Pokemon are sourced for this section.
Trainers
| Route order | Trainer | Team | Reward | Optional / rematch note |
|---|---|---|---|---|
| 1. Cerulean Gym (4, 2) |  MistyParty #1 | $2,079 | One-time trainer; no rematch in Yellow. | |
| 2. Cerulean Gym (2, 3) |  Jr. Trainer FParty #1 | $380 | One-time trainer; no rematch in Yellow. | |
| 3. Cerulean Gym (8, 7) |  SwimmerParty #1 | $80 | 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
| Boss / branch | Team | Reward | Danger notes | Practical counters |
|---|---|---|---|---|
| MistyMisty | $2,079 | Starmie's BubbleBeam is fast and strong for this stage. | Starter Pikachu is the intended answer, and Bulbasaur is available if Pikachu happiness is high enough. Avoid sending Geodude or Onix into BubbleBeam. |
Completion Checklist
- Defeat the gym trainers.
- Beat Misty.
- Use BubbleBeam wisely; it is one of the best early TMs.
- 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.