Goldenrod Underground Crystal · Johto landmark

Map of Goldenrod Underground in Pokémon Crystal — Underground passage (in-game map)

The Goldenrod Underground is the passage beneath Goldenrod City, lined with traders on set days. During the Radio Tower takeover in Crystal, a locked basement door leads through a switch room full of Rockets to a warehouse where the real Radio Tower Director is held, and your rival ambushes you on the way.

Wild Pokémon: None
Items: 16
Trainers: 16

Connects to: Goldenrod City

Where Goldenrod Underground is on the Johto map Goldenrod Underground on the Johto map

Wild Pokémon

No wild Pokémon here.

Trainers

Rival In the Underground, on the way to the warehouse

if you chose Cyndaquil (he has Totodile)

Prize ₽480

Rival In the Underground, on the way to the warehouse

if you chose Totodile (he has Chikorita)

Prize ₽480

Rival In the Underground, on the way to the warehouse

if you chose Chikorita (he has Cyndaquil)

Prize ₽480

Trainer	Pokémon	Prize	Where
Super NerdEric	Grimer 11 Grimer 11	₽88	Underground passage
Super NerdTeru	Magnemite 7 Voltorb 11 Magnemite 7 Magnemite 9	₽72	Underground passage
PokéManiacIssac	Lickitung 12	₽180	Underground passage
PokéManiacDonald	Slowpoke 10 Slowpoke 10	₽150	Underground passage
BurglarDuncan	Koffing 23 Magmar 25 Koffing 23	₽506	Switch room
BurglarEddie	Growlithe 26 Koffing 24	₽528	Switch room
Rocket GruntGrunt	Rattata 27	₽270	Switch room
Rocket GruntGrunt	Muk 23 Koffing 23 Rattata 25 Phone rematches (4) Rematch 1 · ₽330Houndour 33 Rematch 2 · ₽270Rattata 27 Rematch 3 · ₽240Raticate 24 Golbat 24 Rematch 4 · ₽230Grimer 26 Weezing 23	₽250	Switch room
Rocket GruntGrunt	Koffing 24 Muk 24	₽240	Switch room
Rocket GruntGrunt	Gloom 25 Gloom 25	₽250	Switch room
Rocket GruntGrunt	Koffing 25 Koffing 25	₽250	Warehouse
Rocket GruntGrunt	Raticate 24 Golbat 24	₽240	Warehouse
Rocket GruntGrunt	Grimer 26 Weezing 23	₽230	Warehouse

Prize money is the trainer class’s base payout times the level of the trainer’s last Pokémon. Trainers with phone rematches call you when they want another battle; their teams grow as you progress.

Items

Item	How	Where
Coin Case	Item ball	Underground passage
Parlyz Heal	Hidden	Underground passage
Super Potion	Hidden	Underground passage
Antidote	Hidden	Underground passage
Smoke Ball	Item ball	Switch room
Full Heal	Item ball	Switch room
Max Potion	Hidden	Switch room
Revive	Hidden	Switch room
Ether	Item ball	Department Store basement
Amulet Coin	Item ball	Department Store basement
Burn Heal	Item ball	Department Store basement
Ultra Ball	Item ball	Department Store basement
Max Ether	Item ball	Warehouse
TM35 Sleep Talk	Item ball	Warehouse
Ultra Ball	Item ball	Warehouse
Card Key	Gift The real Radio Tower Director, held captive here during Team Rocket’s takeover, gives it to you to open the 3F shutters.	Warehouse

Hidden items can be found with the Itemfinder from Ecruteak City.

Shops

Herb shop (Saturdays and Sundays)

EnergypowderEnergy RootHeal Powder ₽2,000Revival Herb ₽9,800

Bargain shop (Monday mornings, one of each)

Nugget ₽4,500Pearl ₽650Big Pearl ₽3,500Stardust ₽900Star Piece ₽4,600

Tips

A Coin Case lies on the floor of the main passage, which you need for the Game Corner.
Haircut brothers boost friendship: the older brother (¥500) works Tuesday, Thursday and Saturday, the younger (¥300) Sunday, Wednesday and Friday.
An old woman sells Energypowder, Energy Root, Heal Powder and Revival Herb on Saturdays and Sundays; an old man sells one each of Nugget, Pearl, Big Pearl, Stardust and Star Piece on Monday mornings.
The Basement Key from the fake Director in the Radio Tower opens the locked door; rescue the real Director in the warehouse to receive the Card Key.
Your rival (with a Lv32 starter evolution and Sneasel) fights you in the Underground on the way to the warehouse.
Items include a Smoke Ball in the switch room, TM35 Sleep Talk in the warehouse and an Amulet Coin in the Department Store basement.

Walkthrough: Part 4: Ilex Forest, Goldenrod City and Whitney · Part 10: Radio Tower Takeover and Suicune at Tin Tower

More maps

Goldenrod Underground: Switch room — Switch room

Goldenrod Underground: Warehouse — Warehouse

FAQ

Where is the Coin Case in Pokémon Crystal?

On the floor of the Goldenrod Underground passage.

When are the haircut brothers open in Pokémon Crystal?

The older brother cuts hair on Tuesday, Thursday and Saturday for ¥500; the younger works Sunday, Wednesday and Friday for ¥300. Each offers one haircut per day.

Where do you get the Card Key in Pokémon Crystal?

From the Radio Tower Director, whom you find in the Underground warehouse after opening the basement with the Basement Key.

Sources & picture credits

Guide text is original retrogameindex writing, checked against the game’s own scripts and Bulbapedia. Wild Pokémon and encounter chances for all three times of day, fishing, Headbutt and Rock Smash tables, items, trainers, gifts, trades and shops come from the pret/pokecrystal decompilation (pret/pokecrystal 3bc8daa417). Maps, sprites and the Johto and Kanto Pokégear maps are drawn by retrogameindex from the game’s own graphics in that decompilation (listed on the image gallery). Pokémon © Nintendo / Creatures / GAME FREAK.