Pokemon Crystal

Gameboy

For a detailed walkthrough of the game click here.

Evolution Stones: 01**abd5; first slot
replace ** with 
08 - Moonstone
16 - Firestone
17 - Thunderstone
18 - Waterstone
22 - Leafstone
70 - Solarstone
a9 - unknown stone

Battle wild Pokemon: 91**DFD0
Replace the ** with the corresponding number to the Pokemon you want to
fight

98-Chickorita
99-Bayleef
9A-Meganium
9B-Cyndaquil
9C-Quilava
9D-Typlosion
9E-Totodile
9F-Croconaw
A0-Feraligatr
A1-Sentret
A2-furret
A3-Hoothoot
A4-Noctowl
A5-Ledyba
A6-Ledian
A7-Spinarak
A8-Ariados
A9-Crobat
AA-Chinchou
AB-Lanturn
AC-Pichu
AB-Cleffa
AE-Igglybuff
AF-Togepi
B0-Togetic
B1-Natu
B2-Xatu
B3-Mareep
B4-Flaffy
B5-Ampharos
B6-Bellossom
B7-Marill
B8-Azumarill
B9-Sudowoodo
BA-Politoted
BB-Hoppip
BC-Skiploom
BD-Jumpluff
BE-Aipom
BF-Sunkern
C0-Sunflora
C1-Yanma
C2-Wooper
C3-Quagsire
C4-Espeon
C5-Umbreon
C6-Murkrow
C7-Slowking
C8-Misdreaveavus
C9-Unown
CA-Wobbuffet
CB-Girafarig
CC-Pineco
CD-Forretress
CE-Dunsparce
CF-Gligar
D0-Steelix
D1-Snubbull
D2-Granbull
D3-Qwilfish
D4-Scizor
D5-Shuckle
D6-Heracross
D7-Sneasel
D8-Teddiursa
D9-Ursaring
DA-Slugma
DB-Magcargo
DC-Swinub
DD-Piloswine
DE-Corsola
DF-Remoraid
E0-Octillery
E1-Delibird
E2-Mantine
E3-Skarmory
E4-Houndour
E5-Houndoom
E6-Kingdra
E7-Phanby
E8-Donphan
E9-Porygon2
EA-Stantler
EB-Smeargle
EC-Tyrogue
ED-Hitmontop
EE-Smoochum
EF-Elekid
F0-Magby
F1-Miltank
F2-Blissey
F3-Raikou
F4-Entei
F5-Suicune
F6-Larvitar
F7-Pupitar
F8-Tyranitar
F9-Lugia
FA-Ho-oh
FB-Celebi
FD-Egg

Related: Pokemon Black and White Review

Hints

Change Normal Pokemon to Shining Pokemon in Gold & Silver:

If you want the full benefit of this code, use a Pokemon that can evolve. Otherwise, there will be some confusion with names and so forth.

First, place a flying pokemon that has been taught to FLY, as the first pokemon in your lineup, the "Golden Gyarados" as the sixth position, and the

pokemon whose color is to be changed in the second position. After doing this, put all of the pokemon back into the PC except the first one. Next, take out

the pokemon that was in the second position before, the one that will be changed. Enter the bug-catching contest that is near Kogane city. This is held on

Tuesdays, Thursdays, and Saturdays. As soon as you enter it, exit right away. When the clerk asks you if you want to quit, make sure you say NO, which

is always the lower answer. Now use your Flying Pokemon to FLY out of the contest. Store the pokemon that will be changed in a PC, then go back to the

contest and say YES, the top answer, to complete the contest. Return to a PC, withdraw the pokemon, and check its status screen. The pokemon will be a

different color, but it will have Gyarados's name. Grow the pokemon until it evolves. You may want to use Rare Candies if you have any. Now when you go

into battle with the evolved form of the original pokemon, it will have a shining status.

Item Duplication:

Equip a pokemon with a strong item, such as a Master Ball. Put a pokemon with FLY in the first position of your lineup. Put a very bad pokemon, such as

Rattata, in your second slot, and put the pokemon with the item to be duplicated in your sixth slot. Put all of the pokemon into a PC box except for the first

one. Take out the second one. Enter the Bug Catching contest, but exit it as soon as you enter. When the clerk asks you if you want to leave, say NO which

is always the bottom answer. Go back in and use the flying pokemon to leave the contest. Deposit the second pokemon back into a PC. Go back to the

contest and say YES, which is always the top answer, to finish. Now check your status screen. Your second pokemon should be in your possession, and it

will have the item you wanted to be duplicated attached to it. Take the item away from it, then throw the pokemon away. You may do this as many times as

you want to get the items you need.

Turn any Pokeball into a Masterball:

Throw the ball.When it's in midair press Up + B both at the same time and then let go. Then when the ball opens wide to catch the pokemon press and hold

A + B at the same time until the pokemon is caught. If it doesn't work try again and it'll work.

Multiply Pokemon:

In order to breed any pokemon you already have, just breed that pokémon with a Ditto. Since Ditto will breed anything, it's easy to get a level five version of

any of your pokémon. Try this with Eevee or any of his evolutions to get all the Eevee evolutions!

Pokemon and Item Duplication:

There is a SEVERE WARNING before this code. If you make a mistake, you may lose the pokemon instead of duplicating it.

First, determine which pokemon you wish to clone. Make sure you don't have over 5 pokemon in your lineup. Any item that your pokemon is carrying

when it is cloned will duplicate also. Put the pokemon you wish to clone in a box on a PC. Change boxes. As the game is saving, turn off the power. When

you turn it back on, there should be two of the pokemon you wanted to clone.

Fight Pokemon Trainers Forever:

In Gold & Silver, there are some very special trainers. Some of these are the man near the entrance of "Ice Shortcut", a girl near the entrance of Victory

Road in route 26, and a man on route 28. After defeating these people, say "Yes" to their question, and they will give you their phone number. Continue on

your journey, and sometimes they will call you back for a rematch!

Rare Pokemon Trick:

When you come to a rare pokemon that you can only catch once, such as Usocky, Lugia, or Houou, go right next to the pokemon but do not press any

buttons. Save your game immediately. Now fight the pokemon as usual. If you catch him, then don't worry, you don't need the code. If you lose, however,

or you accidentally kill the pokemon, shut off the game without saving. When you turn it back on, you will be right in front of the pokemon and you have

another chance to catch him. You can keep doing this until you finally capture it!

Save Time:

When you arrive in Enjyu City, head straight to the tower. Your rival will confront you there, but he will not fight you. This saves time because if you get

the Gym Badge first and then go to the tower, your rival will fight you.

How to Get Ho-oH as Your First Pokemon:

Take 20 or more pokeballs then cut down any tree, now get to where the tree was and save your game. Then shut the game boy off. Then back on and find

a Ditto in 3:00 minutes. Then save and shut off the game. Now start a new game and you got Ho-oH.

Clone Pokemon (Without a link or second gameboy):

Go to the pokemon Center. Open PC and deposit 2 desired pokemon. It MUST be 2 pokemon. No more. No less. Deposit these two pokemon in any box

except box 6. Now go to box 6 and when your saving and it says not to turn off the power, turn it off. When you turn it back on, the two pokemon you

deposited should be in your party. Those are the clones! The two original pokemon should be in the box you deposited! You can do this over and over. My

friend got a bunch of L:95 Typhlosion!

How to Breed Pokemon:

First go to the daycare center with the old man and the old lady. ( I have only breeded the pokemon that are listed in the Game Faq). Give the male

pokemon to the old man and the female to the old lady. This code takes a long time. Whenever you see the old man standing outside it means the pokemon

made an egg. Its takes the same as when Togepi's egg hatched.

Gym Leader tactics:
Use these Pokemon types to battle the Gym Leaders. 

Hayato (for Wind Badge)
Pidgey: Use Electric type
Pidgeotto: Use Electric type 

Unknown (for Insect Badge)
Metapod: Use Fire type
Kakuna: Use Fire type
Scyther: Use Fire type 

Akane (for Normal Badge)
Clefairy: Use Psychic type
Mirutanku: Use Psychic type 

Unknown (for Phantom Badge)
Ghastly: Use Psychic type
Haunter: Use Psychic type
Gengar: Use Psychic type
Haunter: Use Psychic type 

Unknown (for Shock Badge)
Primeape: Use Psychic type
Poliwrath: Use Grass type 


Mikan (for Steel Badge)
Magnemite: Use Fighting type
Magnemite: Use Fighting type
Haganail: Use Fighting type 

Unknown (for Ice Badge)
Seel: Use Electric type
Dewgong: Use Electric type
Inomu: Use Electric type 

Ibuki (for Raging Badge)
Dragonair: Use Fire type
Dragonair: Use Fire type
Kingudora: Use Fire type
Dragonite: Use Fire type 

Lt. Surge (for Orange Badge)
Raichu: Use Fighting type
Magneton: Use Fighting type
Electabuzz: Use Fighting type
Electrode: Use Fighting type
Electrode: Use Fighting type 

Sabrina (for Gold Badge)
Mr.Mime: Use Psychic type
Alakazam: Use Psychic type
Eifi: Use Psychic type 

Erika (for Rainbow Badge)
Tangela: Use Fire type
Victreebell: Use Fire type
Vileplume: Use Fire type
????: Use Fire type 

Anzu (for ?)
Kurobatto: Use Psychic or Fire type
Ariadosu: Use Psychic or Fire type
Weezing: Use Psychic type
Weezing: Use Psychic type
Venomoth: Use Fire type 

Brock (for ?)
Graveler: Use Grass type
Onix: Use Grass type
Rhyhorn: Use Grass type
Omastar: Use Grass type
Kabutops: Use Grass type 

Blane (for ?)
Magakarugo: Use Water type
Rapidash: Use Water type
Magmar: Use Water type 

Gary (for ?)
Pidgeot: Use Electric type
Alakazam: Use Psychic type
Exeguttor: Use Fire type
Rhydon: Use Grass type
Arcanine: Use Water type 

Ash Ketchum (Final battle for bragging rights)
Pikachu: Use Fighting type
Efi: Use Psychic type
Blastiose: Use Electric type
Venusaur: Use Fire type
Charizard: Use Water type
Snorlax: Use Fighting type 

Orange League Trainer Tactics: 
Use the following Pokemon types to battle the indicated Trainer. 

Itkusi
Neiteio: Use Psychic or Fire type
Slowbro: Use Psychic type
Neiteio: Use Psychic or Fire type
Jynx: Use Psychic type
Exeggutor: Use Fire type 

Koga
Araidosu: Use Psychic or Fire type
Venomoth: Use Fire type
Muk: Use Psychic type
Kuroba: Use Psychic or Fire type
Fuoretosu: Use Psychic or Fire type 

Bruno
Kaporea: Use Psychic or Grass type
Hitmonchan: Use Psychic type
Hitmonlee: Use Psychic type
Machamp: Use Psychic type
Onix: Use Grass type 

Karin
Burakki: Use Psychic or Fire type
Vileplume: Use Fire type
Gengar: Use Psychic type
Yamikarasu: Use Psychic or Fire type
Heruga: Use Psychic or Fire type 

Lance
Gyrados: Use Grass type
Dragonite: Use Electric type
Dragonite: Use Electric type
Dragonite: Use Electric type
Aerodactyl: Use Grass type
Charizard: Use Water type  

Thanks to Revolution reader Ryan!