Fight 100+ Level Pokemon  Submitted by a ton of readers
I was reluctant to post this code because of the effect it would have on two player battles, that is it was almost like cheating. If you do decided to use these in battle, the other player should know about it. Okay, here goes. Perform the 99 Items code below, then after encountering 'M, keep surfing around for a while and you will run into Pokemon that are Lv 135 and above! It is possible to capture them. What's so valuable about this trick is that you might just run into Bulbasaurs, Charmaders and Squirtles! However, some copies of the game can do this better than others, and if you use the Pokemon in a battle other than a 2 player battle, it will revert back to a Lv. 100 Pokemon. Still, defeating these high level Pokemon is a quick way to earn up to 3000 Exp. Points!

Get Over 99 of Any Item (Without a Game Shark!) Submitted by BowlerMan5@aol.com & Josh Nickerson
This code is actually comprised of several different codes sent in by readers. Alone, they're not as exciting, but put them together and you have the code you've been waiting for! And here's how you do it! First, return back to Viridian City and talk to the man who taught you how to catch a Weedle (he is near the Gym where you face Giovanni). Reply "No" to his question, then watch him catch a Weedle. Then, place the item you want 99 of as number six from the top (we recommend Rare Candy or the Master Ball if you still have it). To switch items, press Select while pointing to an item, then move the arrow where you want the item to go and push Select again. Both items will switch places.  Now, FLY back to Cinnabar Island and start SURFING along the east coast of Cinnabar like in the Missingno. code below. This time, however, you will face a different messed up Pokémon, with a name comprised of symbols and the letter M (players refer to him as M). Defeat him or run away but do NOT capture it. When it is defeated, you will have over 100 of the sixth item on your list! The number will actually be a symbol followed by a number If you want to repeat this trick, you'll need to talk to the man again. Keep in mind that you may be surfing for a while before you face M. This trick also works when you capture Missingno. However, since this uses parts of the Missingno code, there will be some side effects (look at the Missingno code below). You can also duplicate expensive items and sell them back to earn lots of money! Thanks to all the players who sent in codes!

Missingno. Pokémon #000 Submitted by Phillip Braham & Michael Ochs
First have a Pokémon with surf. Go in the first door inside the Pokémon lab on Cinnabar Island and trade with one of the trainers in there. Then surf along the east coast of Cinnabar Island, half on water, half on land. Eventually you will fight a bird called Missingno. (the fourth legendary bird?). It does lots of damage but is easy to defeat. It looks like a mass of dots flying around. just throw balls at it to catch it. Be warned, having this Pokémon can crash your Hall of Fame and mess up the graphics (all your Pokémon and the enemy Pokémon can get all warped in battle). It is number 000 in the Pokédex and doesn't have an entry. it has a high attack but all its other stats are really low. If you have an older model Gameboy (not Color or Pocket versions) you may risk your game by catching it.

Fight Safari Pokémon Elsewhere Submitted by NovaAngelX & AtomicG64@aol.com & jpar72@gateway.net
To fight and capture Safari Zone Pokémon outside of the park, first go into the Safari Zone. Let the time run out when you're standing in a patch of grass which holds the Pokémon you want to catch. Step back outside and use FLY to Fly back to Cinnabar Island. Using SURF, surf up and down the right side of the shoreline, where you are half on shore and half in the water. You should then enter some battles with Safari Zone Pokémon! No more bait or rocks! It's sleep and Psybeam time! This also works with other areas of the game where you find wild Pokémon. Experiment and see what happens!

Clone Pokémon (US)  Submitted by Kingmog55
You need a friend for this. Trade the Pokémon to be cloned and have you friend get a Pokémon they don't care about. Trade them, and make sure the person getting the weak and common Pokémon can see the other's screen. When the receiver of the good Pokemon's screen says "waiting", turn off the Game Boy that's getting the bad Pokémon. When the other one says trade completed, turn that one off too. When you turn the games back on, you should both have the powerful Pokémon, but the weak Pokémon will be lost. Warning! This could delete a saved game or your Pokémon!

Go to sleep!.....OK wake up now! submitted by Charlie Michaud
If you have a Pokémon who has Rest or if you can get TM44, your Pokémon can restore all his\her hit  points (HP), in a span of 2 turns! Simply use Rest during battle (the Pokémon will fall asleep), then during your next turn, play the Poke Flute (Obtained when you save Mr. Fuji from the tower in the Pokémon Tower) your Pokémon will wake up ready to go!

Legendary Birds  submitted by Cathy grand@vm.temple.edu
Of all the legendary birds I've found Zapdos is the easiest to capture (which isn't saying much!) since it is possible to capture it when it has nothing wrong with its status (such as sleep or paralyze) and it is possible to capture it when it's health bar is more then just a sliver. Once you have captured Zapdos you can use it to quickly lower the health level of Articuno and Moltres (for these last two I needed to reduce their defense or make them go to sleep to even hit them with a Poké-ball).

Moon Stones Submitted by DuPnt24Kid@aol.com
There are five Moon Stones, three of which are visible, two of which are not.
1) In the upper-lefthand corner of the first floor of Mt. Moon. 
2) In the basement of the game corner.
3) In the bottom-right corner of Route 2 (CUT).
4) In Mt. Moon, before the Supernerd's platform, there is a corridor 4 spaces long and 1 space wide, go
to the end of it and press A and poof! you have a Moon Stone.
5) In the Pokémon Mansion on Cinnabar Island, go up to the right side of one of the pillars on the
right-hand side near the entrance hit A and it will say you found a Moon Stone.

Unlimited chances to catch rare Pokémon  submitted by VirusAoD/Anonymus@angelfire.com
Did you ever run into one of those Pokémon that you can only catch once? Here is a good trick to get as many shots as you want to catch those Pokémon! First ,find a rare Pokémon such as a Mewtwo. Then, right before you go into battle with it, save the game at that point. Finally, you can battle the Pokémon without worrying that you didn't catch it. If you screw up and you make it faint, just stop where you are and shut off the game. Then you can turn it back on, select continue and presto! You should be saved right before getting into battle with the Pokémon!

Better Chance To Capture Pokémon  submitted by Alex/Alexdeh@aol.com
There is a code for the USA version (it might work for the Japanese version too) to catch Pokémon easier. When you throw a Poké-ball hold Up and press down the "A" button as it closes on the Pokémon. The Poké-ball will shut tighter and it will be easier to catch the Pokémon. This trick will work best with the Ultra Ball.

Harder Hitting Attacks  submitted by Dusty
This code is sorta like the "Better Chance to Catch Pokémon" code but it's for attack. Just hold the A button while your attacking and it will do more damage than if you didn't hold A. 

Phantom PC  Submitted by Pinywize@aol.com
That's right, a Phantom PC. Go to Celadon City, then go south until you are by the Alley where the Game Corner is. Walk EAST until you are standing next to a bush. CUT the bush down and go SOUTH to the first building to the WEST.... this is the People Motel. Enter the Motel and walk NORTH until you hit the shelf, then walk EAST until you hit the wall. Now walk DOWN 2 spaces, the walk UP 1 space. Now press A and select something to do!

Fishing Guide  submitted by pokemon5@home.com
Route 22:   #050 Poliwag;  #118 Goldeen
Celadon City/Route 10:  #079 Slowpoke;  #062
Route(s) 12, 13, 17 & 18:  #072 Tentacool; #098 Krabby; #118 Goldeen; #129 Magikarp
Pallet Town:  #072 Tentacool
Cerulean City/Route(s) 4, 24 & 25:  #118 Goldeen; #054 Psyduck; #098 Krabby
Viridian City:  #072 Tentacool; #060 Poliwag
Vermilion City/Route(s) 6 & 11:  #098 Krabby;#090 Shellder
Safari Zone:  #054 Psyduck, #098 Krabby, #079 Slowpoke, #147 Dratini,
Fuchsia City:  #098 Krabby, #118 Goldeen, #129 Magikarp, #119 Seaking

Fish in Statues Submitted by Andrew Daily/dailya@pop.belmont.edu
It's wierd, but you can fish in statues! Simply use the rod! Sometimes you can find rare water Pokémon this way.

Even the Odds at Game Corner  Submitted by Andrew Daily/dailya@pop.belmont.edu
In the casino above the guy with the glasses that you usually find in gyms is a slot machine with great odds. The way I got a Porygon was simple but still long. Save the game when you hit the jackpot After a while the game is fixed and you will either get multiple wins, or hit the jackpot- doing that you eventually start to win several hundred at a time. By hitting the a button rapidly it sets a pattern to make sure you now when the jackpot comes up- the slot machine starts to slow down.

Start With All Three Start Pokémon Submitted by Laurent Landry
Requires:2 linkable game boy systems,2 pokemon games(any color),and a game link cable NOTE:Make sure that Game Boy B takes Bulbasaur to start and then you`ll see the rest of the code below.
1.Start a new game with Game Boy A
2.Go to Prof. Oak`s and get Squirtle, then go get his package, return it, then get the Pokedex.
3.Go to nearest pokemon center and trade squirtle to game Boy B
4.Start new game with Game Boy A
5.Repeat 2-4
6.Go to Prof. Oak`s and get Charmander, then go get his package, return it, then get the Pokedex.
7.Go to nearest pokemon center and trade Charmander to Game Boy B
8.Start new game with Game Boy A
9.Repeat 6-8
10.Go to Prof. Oak`s and get Bulbasaur, then go get his package, return it, then get the Pokedex.
Game Boy B should have 2 Squirtles and 2 Charmanders,so trade one of each back to Game Boy A

GameShark Codes Warning: Using these MAY erase your saved game. Use with caution, and don't come whining to me if your game is erased. Try turning off the Gameshark before saving.
You need a GameShark cheat device to enter these codes below.
Submitted by Kevin (Psyduck) Taillieu
To start off with mew-01151ED1 or 0115d8cf
To fight mew in every battle- 0115D8CF
BUY MASTER BALLS IN ANY POKEMART FOR FREE-01017CCF
Get a Porygon for free- 01AA1ED1 EddieRight@aol.com
INFINITE ENERGY 01FF16D0 mewtwo21@hotmail.com
INFINITE MONEY 019947D3 019948D3 019949D3 mewtwo21@hotmail.com
START W/ MEW 01151ED1 mewtwo21@hotmail.com
FIGHT MEW EVERY TIME 0115D8CF mewtwo21@hotmail.com
FREE MASTERBALLS 01017CCF mewtwo21@hotmail.com
CHARMANDER 01B0D8CF mewtwo21@hotmail.com
Funny Codes Submitted by Wiggy
These codes make the game pretty much silly to play.  the only reason you should use them is to freak out your friends when you use a level 0 magikarp to blow away their level 100 dragonites.one more thing:  all numbers used here must be in hexidecimal.  thus, if you want a level 50 pokemon, put in 32 for the value.  50 will turn out level 80.  If you put in things that would give values higher than the game is designed
to handle (i.e. 1000 attack), you'll get some pretty funky symbols.
01xx64D1 - change first pokemon into whatever pokemon you replace xx with
(get numbers from the encounter cheat code chart below)
01648CD1 - set level of first pokemon to 100 (note: if you know anything
about hexadecimal, you can change the "64" to any number from 00 to FF, or
levels 0 to 255)
01038DD1 and 01E78ED1 - set max hps of first pokemon to 999
01038FD1 and 01E790D1 - set attack of first pokemon to 999
010391D1 and 01E792D1 - set defense of first pokemon to 999
010393D1 and 01E794D1 - set speed of first pokemon to 999
010395D1 and 01E796D1 - set special of first pokemon to 999

Pokemon Codes  Submitted by Cindy Margret Nankaville (cindyk@arach.net.au)
Here is a code to catch all the pokemon if you put in the code you fight the monster.
01xxD8CF (turn the xx into the numbers and letters)
99 Bulbasaur  |  09 Ivysaur  |  9A Venusaur  |  B0 Charmander  |  B2 Charmeleon  |  B4 Charizard
B1 Squirtle  |  B3 Wartortle  |  1C Blastoise  |  7B Caterpie  |  7C Metapodi  |  7D Butterfree
70 Weedle  |  71 Kakuna  |  72 Beedrill  |  24 Pidgey  |  96 Pidgeotto  |  97 Pidgeot
A5 Rattata  |  A6 Raticate  |  05 Spearow  |  23 Frearow  |  6C Ekans  |  2D Arbok
54 Pikachu  |  55 Raichu  |  60 Sandshrew  |  61 Sandslash  |  0F Nidoran(female)
A8 Nindorina  |  10 NidoQueen  |  03 Nidoran(male)  |  A7 Nindorino  |   07 NidoKing
04 Clefairy  |  8E Clefable  |  52 Vulpix  |  53 Ninetales  |  64 Jigglypuff  |  65 Wigglytuff
6B Zubat  |  82 Golbat  |  B9 Oddish  |  BA Gloom  |  BB Vileplume  |  6D Paras  |  2E Parasect
41 Venonat  |  77 Venomoth  |  3B Diglett  |  76 Dugtrios  |  4D Meowth  |  90 Persian
2F Psyduck  |  80 Goldduck  |  39 Mankey  |  75 Primeape  |  21 Growlithe  |  14 Arcanine
47 Poliwag  |  6E Poliwhirl  |  6F Poliwrath  |  94 Abra  |  26 Kadabra  |  95 Alakazam
6A Machop  |  29 Machoke  |  7E Machamp  |  BC Bellsprout  |  BD Weepinbell  |  BE Victreebell
18 Tentacool  |  9B Tentacruel  |  A9 Geodude  |  27 Gravelern  |  31 Golem  |  A3 Ponyta
A4 Rapidash  |  25 Slowpoke  |  08 Slowbro  |  AD Magnemite  |  36 Magneton  |  40 Farfetch'd
46 Doduo  |  74 Dodrio  |  3A Seel  |  78 Dewgong  |  0D Grimer  |  88 Muk  |  17 Shellder
8B Cloyster  |  19 Gastly  |  93 Haunter  |  0E Gengar  |  22 Onix  |  30 Drowzee  |  81 Hypno
4E Krabby  |  8A Kingler  |  06 Voltorb  |  8D Electrode  |  0C Exeggcute  |  0A Exeggutor
11 Cubone  |  91 Marowak  |  2B Hitmonlee  |  2C Hitmonchan  |  0B Lickitung  |  37 Koffing
8F Weezing  |  12 Rhyhorn  |  01 Rhydon  |  28 Chansey  |  1E Tangela  |  02 Kangaskhan
5C Horsea  |  5D SeaDra  |  9D Goldeen  |  9E Seaking  |  1B Staryu  |  98 Starmie
2A Mr. Mime  |  1A Scyther  |  48 Jynx  |  35 Electabuzz  |  33 Magmar  |  1D Pinsir
3C Tauros  |  85 Magikarp  |  16 Gyarados  |  13 Lapras  |  4C Ditto  |  66 Eevee
69 Vaporeon  |  68 Jolteon  |  67 Flareon |  AA Porygon  |  62 Omanvste  |  63 Omastar
5A kabuto  |  5B Kabutops  |  AB Aerodactyl |  84 Snorlax  |  4A Articuro  |  4B Zapdos
49 Moltres  |  58 Dratini  |  59 Dragonair  |  42 Dragonite  |  83 Mewtwo  |  B6 Missingno.

Item Codes  submitted by Josh Freeman (iamvader@hotmail.com) and Steven Kottke
Here is lots of Gameshark codes for ALL of the items:
use 01xx7ccf and replace the xx with the item you want to buy: the list is below
Items List
01 Master Ball  \  02 Ultra Ball  \  03 Great Ball  \  04 Pokéball  \  05 Town map  \  06 Bike
07 Surf without pokemon  \  08 Safari Ball  \  09 Pokedex  \  0A Moon Stone  \  0B Antidote
0C Burn Heal  \  0d Ice Heal  \  0F Parlyz Heal  \  10 Full Restore  \  11 Max Potion  
12 Hyper Potion  \  13 Super Potion  \  14 Potion  \  15 Boulder Badge  \  16 Cascade Badge
17 Thunder Badge  \  18 Rainbow Badge  \  19 Soul Badge  \  1A Marsh Badge
1B Volcano Badge  \  1C Earth Badge  \  1d Escape Rope  \  1E Repel  \  1F Old Amber
20 Fire Stone  \  21 Thunder Stone  \  22 Water Stone  \  23 HP UP  \  24 Protein
25 Iron  \  26 Carbos  \  27 Calcium  \  28 Rare Candy  \  29 Dome Fossil  \  2A Helix Fossil
2B Secret Key  \  2D Bike Voucher  \  2E  X Accuracy  \  2F Leaf Stone  \  3A Dire Hit
3B Coin  \  3C Fresh Water  \  3D Soda Pop  \  3E Lemonade  \  3F  S.S Ticket  \  30 Card Key
31 Nugget  \  32 PP Up  \  33 Pokédoll  \  34 Full Heal  \  35 Revive  \  36 Max Revive
37 Guard Spec  \  38 Super Repel  \  39 Max Repel  \  40 Gold Teeth  \  41  X Attack
42  X Defend  \  43  X Speed  \  44 X Special  \  45 Coin Case  \  46 Oak's Parcel  \  47 Item Finder
48 Silph Scope  \  49 Poké Flute  \  4A Lift Key  \  4B Exp. All  \  4C Old Rod  \  4D Good Rod
4E Super Rod  \  4F PP Up (for free)  \  50 Ether  \  51 Max Ether  \  52 Elixer  \  53 Max Elixir
C4   HM 01  \  C5  HM 02  \  C6 HM 03  \  C7  HM 04  \  C8  HM 05  \  C9  TM 01  \  CA  TM 02
CB  TM 03  \  CD TM 04  \  CE  TM 05   \  CF TM 06  \ D0 TM 07  \  D1 TM 08  \  D2  TM 09
D3  TM 10  \  D4  TM 11  \  D5  TM 12  \  D6  TM 13  \  D7  TM 14  \  D8  TM 15  \  D9  TM 16
DA  TM 17  \  DB  TM 18  \  DC  TM 19  \  DE  TM 20  \  DF  TM 21  \  E0  TM 22  \  E1  TM 23
E2  TM 24  \  E3  TM 25  \  E4  TM 26  \  E5   TM 27  \  E6  TM 28  \  E7  TM 29  \  E8  TM 30
E9  TM 31  \  EA  TM 32  \  EB  TM 33  \  EC  TM 34  \  ED  TM 35  \  EE  TM 36  \  EF  TM 37
F0  TM 38  \  F1  TM 39  \  F2  TM 40  \  F3  TM 41  \  F4  TM 42  \  F5  TM 43  \  F6  TM 44
F7  TM 45  \  F8  TM 46  \  F9  TM 47  \  FA  TM 48  \  FB  TM 49  \  FC  TM 50
These Codes Work on ANY Pokémart !  :-)

GameGenie Codes  Warning: Using these MAY erase your saved game
You need a Game Genie cheat device to enter these codes below
Submitted by ZannieMan@aol.com(red) and Dakarren Windwolf(blue)
The code for Mew....(you must have game genie)...FOR THE AMERICAN VERSION is.....type in
For RED pokemon game: 151-91a-7fc/ 151-93a-f7e/ 151-9ba-5db
BLUE 151-91a-7fc/ 151-93a-f7e/ 151-9ba-6eb/
Then got to the field west of Cerulean City...He'll be there.

Get Rich Quick  Submitted by LINDA S ALLEN (QUIKDRAW@prodigy.net)
if you put in 996-11B-E6A it will make the pokeball (not any other sort of ball) worth $990200!! So
turn off the code and buy 2 or 3 then turn it back on and sell them to be rich!

Fight Missingno pikachu_of_hell@yahoo.com
001-91A-7FC + 001-93A-F7E + 001-9BA-5DB

Fight any PokéMon  Submitted by ZannieMan@aol.com