Kanto badge phase

Pokemon Yellow Phase 4: Rainbow Badge Walkthrough

Phase 4 of the Pokemon Yellow walkthrough covering Rock Tunnel, Lavender, Celadon, Game Corner, Rocket Hideout, and Erika.

By Damodar Sharma Updated June 23, 2026 Walkthrough

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

Phase 4

Target28-33 RewardRainbow Badge, Silph Scope, Coin Case, Eevee Sections6
Charizard Yellow sprite Blastoise Yellow sprite

Phase Sections

Phase Data Rollup

Section Source maps Wild rows Trainers Items
Routes 9 and 10321154
Rock Tunnel27150
Lavender Town and Routes 8/741192
Celadon City and Game Corner1414115
Rocket Hideout and Celadon Gym601816
Celadon Gym1081

Routes 9 and 10

Cut east from Cerulean, collect route items, and reach Rock Tunnel.

Source maps

Route 9, Route 10, and Rock Tunnel Pokemon Center.

Wild rows21 Trainers15 Items4

Route plan

Route 9/10 trainers are a step up from Vermilion. Flash makes Rock Tunnel much easier but is technically optional.

Wild Pokemon

Route 9

Route 9 wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Nidoran M Yellow sprite Nidoran M 16-1830%
Nidoran F Yellow sprite Nidoran F 16-1830%
Rattata Yellow sprite Rattata 1815%
Spearow Yellow sprite Spearow 179.8%
Nidorino Yellow sprite Nidorino 185.1%
Nidorina Yellow sprite Nidorina 185.1%
Raticate Yellow sprite Raticate 204.3%
Fearow Yellow sprite Fearow 191.2%

Route 10

Route 10 wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Magnemite Yellow sprite Magnemite 16-2250%
Rattata Yellow sprite Rattata 1820%
Nidoran M Yellow sprite Nidoran M 179.8%
Nidoran F Yellow sprite Nidoran F 179.8%
Machop Yellow sprite Machop 16-185.5%
Raticate Yellow sprite Raticate 205.1%
Fishing — Old Rod
Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Fishing — Good Rod
Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Fishing — Super Rod
Krabby Yellow sprite Krabby 1525%Yellow Super Rod slot table.
Krabby Yellow sprite Krabby 2025%Yellow Super Rod slot table.
Horsea Yellow sprite Horsea 1025%Yellow Super Rod slot table.
Kingler Yellow sprite Kingler 2525%Yellow Super Rod slot table.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Route 9 (13, 10)Jr. Trainer F trainer spriteJr. Trainer FParty #5$360One-time trainer; no rematch in Yellow.
2. Route 9 (24, 7)Youngster trainer spriteYoungsterParty #14$360One-time trainer; no rematch in Yellow.
3. Route 9 (31, 7)Jr. Trainer M trainer spriteJr. Trainer MParty #8$380One-time trainer; no rematch in Yellow.
4. Route 9 (48, 8)Jr. Trainer F trainer spriteJr. Trainer FParty #6$460One-time trainer; no rematch in Yellow.
5. Route 9 (16, 15)Hiker trainer spriteHikerParty #11$700One-time trainer; no rematch in Yellow.
6. Route 9 (43, 3)Hiker trainer spriteHikerParty #6$700One-time trainer; no rematch in Yellow.
7. Route 9 (22, 2)Bug Catcher trainer spriteBug CatcherParty #13$190One-time trainer; no rematch in Yellow.
8. Route 9 (45, 15)Hiker trainer spriteHikerParty #5$735One-time trainer; no rematch in Yellow.
9. Route 9 (40, 8)Bug Catcher trainer spriteBug CatcherParty #14$200One-time trainer; no rematch in Yellow.
10. Route 10 (10, 44)Pokemaniac trainer spritePokemaniacParty #1$1,500One-time trainer; no rematch in Yellow.
11. Route 10 (3, 57)Hiker trainer spriteHikerParty #7$735One-time trainer; no rematch in Yellow.
12. Route 10 (14, 64)Pokemaniac trainer spritePokemaniacParty #2$1,000One-time trainer; no rematch in Yellow.
13. Route 10 (7, 25)Jr. Trainer F trainer spriteJr. Trainer FParty #7$400One-time trainer; no rematch in Yellow.
14. Route 10 (3, 61)Hiker trainer spriteHikerParty #8$665One-time trainer; no rematch in Yellow.
15. Route 10 (7, 54)Jr. Trainer F trainer spriteJr. Trainer FParty #8$420One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
TM30 TeleportVisible item ballVisible item ball at (10, 15) in Route 9.(10, 15)Reach this tile; HMs or story flags may be needed for late-game dungeons.
EtherHidden itemHidden on the searchable tile at (14, 7) in Route 9.(14, 7)Press A on the hidden tile or use the Itemfinder nearby.
Super PotionHidden itemHidden on the searchable tile at (9, 17) in Route 10.(9, 17)Press A on the hidden tile or use the Itemfinder nearby.
Max EtherHidden itemHidden on the searchable tile at (16, 53) in Route 10.(16, 53)Press A on the hidden tile or use the Itemfinder nearby.

Completion Checklist

  • Clear Route 9 trainers.
  • Pick up hidden Route 9/10 items.
  • Heal at the Rock Tunnel Pokemon Center.

Rock Tunnel

Navigate both floors and exit to Lavender Town.

Source maps

Rock Tunnel 1F and Rock Tunnel B1F.

Wild rows7 Trainers15 Items0

Route plan

Bring Repels if Zubat/Geodude density wears you down. Water, Grass, and Fighting coverage handle most hikers.

Wild Pokemon

Rock Tunnel 1F

Rock Tunnel 1F wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Zubat Yellow sprite Zubat 15-2150%
Geodude Yellow sprite Geodude 16-2039%
Machop Yellow sprite Machop 17-2111%

Rock Tunnel B1F

Rock Tunnel B1F wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Zubat Yellow sprite Zubat 20-2239%
Geodude Yellow sprite Geodude 17-2130%
Machop Yellow sprite Machop 18-2020%
Onix Yellow sprite Onix 14-2211%

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Rock Tunnel 1F (7, 5)Hiker trainer spriteHikerParty #12$665One-time trainer; no rematch in Yellow.
2. Rock Tunnel 1F (5, 16)Hiker trainer spriteHikerParty #13$700One-time trainer; no rematch in Yellow.
3. Rock Tunnel 1F (17, 15)Hiker trainer spriteHikerParty #14$735One-time trainer; no rematch in Yellow.
4. Rock Tunnel 1F (23, 8)Pokemaniac trainer spritePokemaniacParty #7$1,150One-time trainer; no rematch in Yellow.
5. Rock Tunnel 1F (37, 21)Jr. Trainer F trainer spriteJr. Trainer FParty #17$440One-time trainer; no rematch in Yellow.
6. Rock Tunnel 1F (22, 24)Jr. Trainer F trainer spriteJr. Trainer FParty #18$400One-time trainer; no rematch in Yellow.
7. Rock Tunnel 1F (32, 24)Jr. Trainer F trainer spriteJr. Trainer FParty #19$380One-time trainer; no rematch in Yellow.
8. Rock Tunnel B1F (11, 13)Jr. Trainer F trainer spriteJr. Trainer FParty #9$420One-time trainer; no rematch in Yellow.
9. Rock Tunnel B1F (6, 10)Hiker trainer spriteHikerParty #9$735One-time trainer; no rematch in Yellow.
10. Rock Tunnel B1F (3, 5)Pokemaniac trainer spritePokemaniacParty #3$1,000One-time trainer; no rematch in Yellow.
11. Rock Tunnel B1F (20, 21)Pokemaniac trainer spritePokemaniacParty #4$1,100One-time trainer; no rematch in Yellow.
12. Rock Tunnel B1F (30, 10)Hiker trainer spriteHikerParty #10$875One-time trainer; no rematch in Yellow.
13. Rock Tunnel B1F (14, 28)Jr. Trainer F trainer spriteJr. Trainer FParty #10$440One-time trainer; no rematch in Yellow.
14. Rock Tunnel B1F (33, 5)Hiker trainer spriteHikerParty #11$700One-time trainer; no rematch in Yellow.
15. Rock Tunnel B1F (26, 30)Pokemaniac trainer spritePokemaniacParty #5$1,250One-time trainer; no rematch in Yellow.

Completion Checklist

  • Clear every trainer on 1F and B1F.
  • Catch Machop/Onix/Geodude lines if needed.
  • Exit south to Lavender.

Lavender Town and Routes 8/7

Reach Celadon via Route 8 and the east-west Underground Path.

Source maps

Lavender Town, Route 8, Route 7, and Underground Path West East.

Wild rows11 Trainers9 Items2

Route plan

Pokemon Tower cannot be completed without the Silph Scope, so use Lavender as a routing stop for now.

Wild Pokemon

Route 8

Route 8 wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Pidgey Yellow sprite Pidgey 20-2240%
Abra Yellow sprite Abra 15-1920%
Rattata Yellow sprite Rattata 2015%
Jigglypuff Yellow sprite Jigglypuff 19-2410%
Pidgeotto Yellow sprite Pidgeotto 249.8%
Kadabra Yellow sprite Kadabra 20-275.5%

Route 7

Route 7 wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Tall grass / cave floor
Pidgey Yellow sprite Pidgey 20-2240%
Abra Yellow sprite Abra 15-2625%
Rattata Yellow sprite Rattata 2015%
Jigglypuff Yellow sprite Jigglypuff 19-2411%
Pidgeotto Yellow sprite Pidgeotto 249.8%

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Route 8 (8, 5)Super Nerd trainer spriteSuper NerdParty #3$500One-time trainer; no rematch in Yellow.
2. Route 8 (13, 9)Gambler trainer spriteGamblerParty #5$1,540One-time trainer; no rematch in Yellow.
3. Route 8 (42, 6)Super Nerd trainer spriteSuper NerdParty #4$550One-time trainer; no rematch in Yellow.
4. Route 8 (26, 3)Lass trainer spriteLassParty #13$345One-time trainer; no rematch in Yellow.
5. Route 8 (26, 4)Super Nerd trainer spriteSuper NerdParty #5$650One-time trainer; no rematch in Yellow.
6. Route 8 (26, 5)Lass trainer spriteLassParty #14$360One-time trainer; no rematch in Yellow.
7. Route 8 (26, 6)Lass trainer spriteLassParty #15$285One-time trainer; no rematch in Yellow.
8. Route 8 (46, 13)Gambler trainer spriteGamblerParty #7$1,680One-time trainer; no rematch in Yellow.
9. Route 8 (51, 12)Lass trainer spriteLassParty #16$330One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
NuggetHidden itemHidden on the searchable tile at (12, 2) in Underground Path West East.(12, 2)Press A on the hidden tile or use the Itemfinder nearby.
ElixerHidden itemHidden on the searchable tile at (21, 5) in Underground Path West East.(21, 5)Press A on the hidden tile or use the Itemfinder nearby.

Completion Checklist

  • Clear or dodge Route 8 trainers.
  • Search Underground Path hidden items.
  • Enter Celadon from Route 7.

Celadon City and Game Corner

Collect Celadon gifts, buy supplies, earn coins if desired, and uncover the Rocket Hideout switch.

Source maps

Celadon City, Celadon Mansion 1F, Celadon Mansion 2F, Celadon Mansion 3F, Celadon Mansion Roof, Celadon Mansion Roof House, Celadon Diner, and Celadon Mart 1F, and 6 more map files.

Wild rows14 Trainers1 Items15

Route plan

Celadon is the biggest utility stop in the game: stones, TMs, drinks for Saffron guards, Eevee, and Game Corner prizes all come online here.

Wild Pokemon

Celadon City

Celadon City wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Fishing — Old Rod
Magikarp Yellow sprite Magikarp 5100%Any fishable water tile.
Fishing — Good Rod
Goldeen Yellow sprite Goldeen 1050%Any fishable water tile after getting Good Rod.
Poliwag Yellow sprite Poliwag 1050%Any fishable water tile after getting Good Rod.
Fishing — Super Rod
Goldeen Yellow sprite Goldeen 525%Yellow Super Rod slot table.
Goldeen Yellow sprite Goldeen 1025%Yellow Super Rod slot table.
Goldeen Yellow sprite Goldeen 1525%Yellow Super Rod slot table.
Goldeen Yellow sprite Goldeen 2025%Yellow Super Rod slot table.

Celadon Mansion Roof House

Celadon Mansion Roof House wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Gift
Eevee Yellow sprite Eevee 25GiftEnter the Celadon Mansion from the rear path and pick up the Poke Ball on the roof-house table.

Game Corner

Game Corner wild Pokemon by encounter method, levels, rate, and requirements
PokémonLevelsRateNotes
Game Corner prize
Abra Yellow sprite Abra 15230 coinsPrize counter.
Vulpix Yellow sprite Vulpix 181000 coinsPrize counter.
Wigglytuff Yellow sprite Wigglytuff 222680 coinsPrize counter.
Scyther Yellow sprite Scyther 306500 coinsPrize counter.
Pinsir Yellow sprite Pinsir 306500 coinsPrize counter.
Porygon Yellow sprite Porygon 269999 coinsPrize counter.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Game Corner (9, 5)Rocket trainer spriteRocketParty #7$600One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
PP UpHidden itemHidden on the searchable tile at (48, 15) in Celadon City.(48, 15)Press A on the hidden tile or use the Itemfinder nearby.
10 CoinsHidden coinsHidden on the searchable tile at (0, 8) in Game Corner.(0, 8)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (1, 16) in Game Corner.(1, 16)Press A on the Game Corner floor tile.
20 CoinsHidden coinsHidden on the searchable tile at (3, 11) in Game Corner.(3, 11)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (3, 14) in Game Corner.(3, 14)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (4, 12) in Game Corner.(4, 12)Press A on the Game Corner floor tile.
20 CoinsHidden coinsHidden on the searchable tile at (9, 12) in Game Corner.(9, 12)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (9, 15) in Game Corner.(9, 15)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (16, 14) in Game Corner.(16, 14)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (10, 16) in Game Corner.(10, 16)Press A on the Game Corner floor tile.
40 CoinsHidden coinsHidden on the searchable tile at (11, 7) in Game Corner.(11, 7)Press A on the Game Corner floor tile.
100 CoinsHidden coinsHidden on the searchable tile at (15, 8) in Game Corner.(15, 8)Press A on the Game Corner floor tile.
10 CoinsHidden coinsHidden on the searchable tile at (12, 15) in Game Corner.(12, 15)Press A on the Game Corner floor tile.
Coin CaseGiftTalk to the man in the diner.-Talk to the man in the diner.
TM41 SoftboiledGiftSurf across the small pond and speak to the man.-Surf across the small pond and speak to the man.

Completion Checklist

  • Get Coin Case.
  • Get Eevee.
  • Buy vending-machine drinks and evolution stones if needed.
  • Pick up hidden Game Corner coins.

Rocket Hideout and Celadon Gym

Take the Lift Key, defeat Giovanni, get the Silph Scope, then clear Erika.

Source maps

Rocket Hideout B1F, Rocket Hideout B2F, Rocket Hideout B3F, Rocket Hideout B4F, Rocket Hideout Elevator, and Celadon Gym.

Wild rows0 Trainers18 Items16

Route plan

The Hideout spin tiles hide several strong TMs. After Giovanni, the Silph Scope unlocks Pokemon Tower's true ghosts.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Rocket Hideout B1F (26, 8)Rocket trainer spriteRocketParty #8$630One-time trainer; no rematch in Yellow.
2. Rocket Hideout B1F (12, 6)Rocket trainer spriteRocketParty #9$630One-time trainer; no rematch in Yellow.
3. Rocket Hideout B1F (18, 17)Rocket trainer spriteRocketParty #10$600One-time trainer; no rematch in Yellow.
4. Rocket Hideout B1F (15, 25)Rocket trainer spriteRocketParty #11$570One-time trainer; no rematch in Yellow.
5. Rocket Hideout B1F (28, 18)Rocket trainer spriteRocketParty #12$660One-time trainer; no rematch in Yellow.
6. Rocket Hideout B2F (20, 12)Rocket trainer spriteRocketParty #13$510One-time trainer; no rematch in Yellow.
7. Rocket Hideout B3F (10, 22)Rocket trainer spriteRocketParty #14$600One-time trainer; no rematch in Yellow.
8. Rocket Hideout B3F (26, 12)Rocket trainer spriteRocketParty #15$630One-time trainer; no rematch in Yellow.
9. Rocket Hideout B4F (25, 3)Giovanni trainer spriteGiovanniParty #1$2,871One-time trainer; no rematch in Yellow.
10. Rocket Hideout B4F (11, 2)Rocket trainer spriteRocketParty #18$630One-time trainer; no rematch in Yellow.
11. Celadon Gym (4, 3)Erika trainer spriteErikaParty #1$3,168One-time trainer; no rematch in Yellow.
12. Celadon Gym (2, 11)Lass trainer spriteLassParty #17$345One-time trainer; no rematch in Yellow.
13. Celadon Gym (7, 10)Beauty trainer spriteBeautyParty #1$1,470One-time trainer; no rematch in Yellow.
14. Celadon Gym (9, 5)Jr. Trainer F trainer spriteJr. Trainer FParty #11$480One-time trainer; no rematch in Yellow.
15. Celadon Gym (1, 5)Beauty trainer spriteBeautyParty #2$1,680One-time trainer; no rematch in Yellow.
16. Celadon Gym (6, 3)Lass trainer spriteLassParty #18$345One-time trainer; no rematch in Yellow.
17. Celadon Gym (3, 3)Beauty trainer spriteBeautyParty #3$1,820One-time trainer; no rematch in Yellow.
18. Celadon Gym (5, 3)Cooltrainer F trainer spriteCooltrainer FParty #1$840One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
Escape RopeVisible item ballVisible item ball at (11, 14) in Rocket Hideout B1F.(11, 14)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Hyper PotionVisible item ballVisible item ball at (9, 17) in Rocket Hideout B1F.(9, 17)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Moon StoneVisible item ballVisible item ball at (1, 11) in Rocket Hideout B2F.(1, 11)Reach this tile; HMs or story flags may be needed for late-game dungeons.
NuggetVisible item ballVisible item ball at (16, 8) in Rocket Hideout B2F.(16, 8)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM07 Horn DrillVisible item ballVisible item ball at (6, 12) in Rocket Hideout B2F.(6, 12)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Super PotionVisible item ballVisible item ball at (3, 21) in Rocket Hideout B2F.(3, 21)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM10 Double EdgeVisible item ballVisible item ball at (26, 17) in Rocket Hideout B3F.(26, 17)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Rare CandyVisible item ballVisible item ball at (20, 14) in Rocket Hideout B3F.(20, 14)Reach this tile; HMs or story flags may be needed for late-game dungeons.
HP UpVisible item ballVisible item ball at (10, 12) in Rocket Hideout B4F.(10, 12)Reach this tile; HMs or story flags may be needed for late-game dungeons.
TM02 Razor WindVisible item ballVisible item ball at (9, 4) in Rocket Hideout B4F.(9, 4)Reach this tile; HMs or story flags may be needed for late-game dungeons.
IronVisible item ballVisible item ball at (12, 20) in Rocket Hideout B4F.(12, 20)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Silph ScopeVisible item ballVisible item ball at (25, 2) in Rocket Hideout B4F.(25, 2)Reach this tile; HMs or story flags may be needed for late-game dungeons.
Lift KeyVisible item ballVisible item ball at (10, 2) in Rocket Hideout B4F.(10, 2)Reach this tile; HMs or story flags may be needed for late-game dungeons.
PP UpHidden itemHidden on the searchable tile at (21, 15) in Rocket Hideout B1F.(21, 15)Press A on the hidden tile or use the Itemfinder nearby.
NuggetHidden itemHidden on the searchable tile at (27, 17) in Rocket Hideout B3F.(27, 17)Press A on the hidden tile or use the Itemfinder nearby.
Super PotionHidden itemHidden on the searchable tile at (25, 1) in Rocket Hideout B4F.(25, 1)Press A on the hidden tile or use the Itemfinder nearby.

Boss Strategy

Boss / branch Team Reward Danger notes Practical counters
Jessie and James trainer spriteJessie and JamesJessie and James - Rocket Hideout B4F$750Koffing, Meowth, and Ekans interrupt the Giovanni route.Psychic and Ground attacks are clean; keep Poison healing ready if Koffing stalls.
Giovanni trainer spriteGiovanniGiovanni - Rocket Hideout$2,871Persian joins Onix and Rhyhorn, making Giovanni less free than a pure Ground/Rock fight.Water and Grass attacks handle Onix/Rhyhorn. Use Fighting, status, or a sturdy Normal-neutral pivot for Persian.

Completion Checklist

  • Get Lift Key from the Rocket.
  • Pick up Hideout TMs/items.
  • Defeat Giovanni for Silph Scope.
  • Earn the Rainbow Badge from Erika.

Celadon Gym

Earn the Rainbow Badge if you split the gym from the Hideout route.

Source maps

Celadon Gym.

Wild rows0 Trainers8 Items1

Route plan

Fire, Flying, Bug, and Psychic moves are the cleanest way through the Grass/Poison gym.

Trainers

Route order Trainer Team Reward Optional / rematch note
1. Celadon Gym (4, 3)Erika trainer spriteErikaParty #1$3,168One-time trainer; no rematch in Yellow.
2. Celadon Gym (2, 11)Lass trainer spriteLassParty #17$345One-time trainer; no rematch in Yellow.
3. Celadon Gym (7, 10)Beauty trainer spriteBeautyParty #1$1,470One-time trainer; no rematch in Yellow.
4. Celadon Gym (9, 5)Jr. Trainer F trainer spriteJr. Trainer FParty #11$480One-time trainer; no rematch in Yellow.
5. Celadon Gym (1, 5)Beauty trainer spriteBeautyParty #2$1,680One-time trainer; no rematch in Yellow.
6. Celadon Gym (6, 3)Lass trainer spriteLassParty #18$345One-time trainer; no rematch in Yellow.
7. Celadon Gym (3, 3)Beauty trainer spriteBeautyParty #3$1,820One-time trainer; no rematch in Yellow.
8. Celadon Gym (5, 3)Cooltrainer F trainer spriteCooltrainer FParty #1$840One-time trainer; no rematch in Yellow.

Items And Hidden Items

Item Type Area / direction Coordinate Requirement
TM21 Mega DrainGym rewardDefeat Erika.-Defeat Erika.

Boss Strategy

Boss / branch Team Reward Danger notes Practical counters
Erika trainer spriteErikaErika$3,168Victreebel and Vileplume spread sleep/status and Tangela can stall physical attackers.Fire, Flying, Bug, and Psychic attacks are best. Bring Awakenings or a clean switch if Sleep Powder lands.

Completion Checklist

  • Cut the tree to enter.
  • Beat all trainers for experience.
  • Defeat Erika.

Sources