Phase 3
Pokemon FireRed and LeafGreen Phase 3: Thunder Badge Walkthrough
Phase 3 of the Pokemon FireRed and LeafGreen walkthrough: Routes 5/6, Vermilion, S.S. Anne, Lt. Surge, Diglett's Cave, and Route 11.
Routes 5/6, Vermilion, S.S. Anne, Lt. Surge, Diglett's Cave, and Route 11. Open each section page for source-backed encounter tables, trainer teams, hidden item rows, and boss cards.
Phase 3
Routes 5/6, Vermilion, S.S. Anne, Lt. Surge, Diglett's Cave, and Route 11.
FR/LG reminder
Use version rows for exclusives and remember that the remakes add abilities, natures, held items, the VS Seeker, Sevii Islands, and National Dex post-game routing.
Section Pages
Move south from Cerulean, use the Underground Path, reach Vermilion, collect the Bike Voucher and Old Rod, and pick up early trades.
Phase 3S.S. AnneSweep cabins for trainers and items, beat the ship Rival, help the Captain, and receive HM01 Cut.
Phase 3Vermilion GymSolve the trash-can switch puzzle and beat Lt. Surge.
Phase 3Diglett's Cave, Route 11, and Flash CleanupUse Diglett's Cave to reach Route 2's east side, collect Flash if you meet the Pokedex requirement, and sweep Route 11.
Major Bosses
| Boss / branch | Team | Reward | Danger notes | Practical counters |
|---|---|---|---|---|
 TerryRival | $720 | The branch changes with your starter and is the guide's main repeated boss variable. | Plan for Pidgeot, Alakazam, Rhydon, and the final starter evolution, then adjust the last slot around your starter choice. | |
| TerryRival | $720 | The branch changes with your starter and is the guide's main repeated boss variable. | Plan for Pidgeot, Alakazam, Rhydon, and the final starter evolution, then adjust the last slot around your starter choice. | |
| TerryRival | $720 | The branch changes with your starter and is the guide's main repeated boss variable. | Plan for Pidgeot, Alakazam, Rhydon, and the final starter evolution, then adjust the last slot around your starter choice. | |
 Lt. SurgeLeader | $2400 | Raichu's Shock Wave never misses and Double Team can waste turns. | Diglett's Cave is the clean answer; Ground types ignore Electric attacks. |
Phase Checklist
- Routes 5 and 6, Underground Path, and Vermilion: Use this phase to normalize levels before S.S. Anne. The VS Seeker arrives in Vermilion's Pokemon Center and changes rematch routing for the rest of the game.
- S.S. Anne: The ship leaves after you get Cut and exit, so sweep rooms first if you want every trainer and item.
- Vermilion Gym: Bring Diglett or another Ground type from Diglett's Cave if Raichu is a problem.
- Diglett's Cave, Route 11, and Flash Cleanup: Diglett and Dugtrio are also the cleanest Lt. Surge insurance if you do this before the Gym.