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Phase 4

Pokemon FireRed and LeafGreen Phase 4: Rainbow Badge Walkthrough

Phase 4 of the Pokemon FireRed and LeafGreen walkthrough: Rock Tunnel, Lavender, Celadon, Rocket Hideout, Game Corner, and Erika.

By Damodar Sharma Updated June 24, 2026 Walkthrough

Rock Tunnel, Lavender, Celadon, Rocket Hideout, Game Corner, and Erika. Open each section page for source-backed encounter tables, trainer teams, hidden item rows, and boss cards.

Phase 4

Rock Tunnel, Lavender, Celadon, Rocket Hideout, Game Corner, and Erika.

Target28-35 RewardRainbow Badge, Silph Scope, Coin Case, Tea, Eevee Sections6

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

Phase 4Routes 9 and 10

Cut east from Cerulean, clear Route 9, reach the Rock Tunnel Pokemon Center, and mark Power Plant for later.

 Phase 4Rock Tunnel

Navigate the dark cave, collect cave items, and exit toward Lavender Town.

 Phase 4Lavender Town, Routes 8 and 7

Visit Lavender, preview Pokemon Tower, use the Underground Path connector, and reach Celadon.

 Phase 4Celadon City and Game Corner

Collect Tea, Coin Case, Eevee, Game Corner prizes, department store supplies, and open the Rocket Hideout.

 Phase 4Rocket Hideout

Use spin tiles and the Lift Key to reach Giovanni, defeat him, and claim the Silph Scope.

 Phase 4Celadon Gym

Cut into the Gym, clear Grass trainers, and beat Erika.

Major Bosses

Boss / branchTeamRewardDanger notesPractical counters
Rival Terry trainer spriteTerryRival
Pidgeotto FireRed and LeafGreen sprite Pidgeotto Lv. 25 Growlithe FireRed and LeafGreen sprite Growlithe Lv. 23 Exeggcute FireRed and LeafGreen sprite Exeggcute Lv. 22 Kadabra FireRed and LeafGreen sprite Kadabra Lv. 20 Wartortle FireRed and LeafGreen sprite Wartortle Lv. 25
$900The 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.
Rival Terry trainer spriteTerryRival
Pidgeotto FireRed and LeafGreen sprite Pidgeotto Lv. 25 Gyarados FireRed and LeafGreen sprite Gyarados Lv. 23 Growlithe FireRed and LeafGreen sprite Growlithe Lv. 22 Kadabra FireRed and LeafGreen sprite Kadabra Lv. 20 Ivysaur FireRed and LeafGreen sprite Ivysaur Lv. 25
$900The 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.
Rival Terry trainer spriteTerryRival
Pidgeotto FireRed and LeafGreen sprite Pidgeotto Lv. 25 Exeggcute FireRed and LeafGreen sprite Exeggcute Lv. 23 Gyarados FireRed and LeafGreen sprite Gyarados Lv. 22 Kadabra FireRed and LeafGreen sprite Kadabra Lv. 20 Charmeleon FireRed and LeafGreen sprite Charmeleon Lv. 25
$900The 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.
Boss Giovanni trainer spriteGiovanniBoss
Onix FireRed and LeafGreen sprite Onix Lv. 25 Rhyhorn FireRed and LeafGreen sprite Rhyhorn Lv. 24 Kangaskhan FireRed and LeafGreen sprite Kangaskhan Lv. 29
$2900Giovanni mixes Ground, Poison, and Kangaskhan pressure.Use Water/Grass for the Ground core and avoid feeding Kangaskhan free turns.
Leader Erika trainer spriteErikaLeader
Victreebel FireRed and LeafGreen sprite Victreebel Lv. 29 | Stun Spore / Acid / Poisonpowder / Giga Drain Tangela FireRed and LeafGreen sprite Tangela Lv. 24 | Poisonpowder / Constrict / Ingrain / Giga Drain Vileplume FireRed and LeafGreen sprite Vileplume Lv. 29 | Sleep Powder / Acid / Stun Spore / Giga Drain
$2900Sleep Powder and Giga Drain stretch the fight.Bring Fire, Flying, Bug, or Psychic coverage and carry Awakenings.

Phase Checklist

  • Routes 9 and 10: Heal at Route 10 before entering Rock Tunnel. Flash is optional but strongly recommended.
  • Rock Tunnel: Use Repels if low on resources; without Flash, hug walls and follow ladders methodically.
  • Lavender Town, Routes 8 and 7: You cannot finish Pokemon Tower until the Silph Scope, so keep moving west to Celadon.
  • Celadon City and Game Corner: Buy evolution stones and TMs before the midgame opens up. Tea replaces the old vending-machine guard drinks from Gen I.
  • Rocket Hideout: Clear B2F/B3F before the elevator. After the Lift Key, ride down to B4F for Giovanni.
  • Celadon Gym: Fire, Flying, Psychic, and Bug coverage all work; bring status healing for Sleep Powder and poison.

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