Ok, I have three here, but one of them isn't really a cheat.

1. Stand on Tree.
Cut down a tree, and walk to the space where the tree was, so that you are standing where it uses to be. Save the game, and turn it off. When you turn the game back on, you will standing on the tree! Lol XD

2. Missingno Version 1.
Fly to Viridian City and talk to the man who once stopped you from going past, and talked about coffee. When he asks you if you want to know how to catch Pokemon, say yes. Once he is done, fly to Cinnabar Island. Surf on the east side of the island, so that you are half on water, and half on land. After a little bit of surfing, either a =++M++= or a Misingno or other random Pokemon, sometimes on level past 100 will appear. Note: If you are too paranoid about Missingno or =++M++= stuffing up your game, do not catch them. I have caught them, and only my hall of fame was glitched up.

3. Missingno Version 2.
Do exactly the same thing as the Missingno Version 1. With this exception:
Anytime before surfing at Cinnabar, if you want to get 130 of an item, put the item you want to duplicate in 6th position in your pack. Then surf, and once you find Missingno, either catch it, run or kill it, and the sixth item in your pack will have some glitchy symbols where the number is.

Happy Cheating!!!
Yossy666

Two hints:
1. Missingno affects each game a different way, mostly. If Missingno does screw up your game, you'll know not to do it again won't you? So please stop saying that Missingno's going to screw up every game, cause it won't The worst it's ever done to my blue, red and yellow version is muck up my Hall of Fame, and Trainer Card, which AREN'T important. So, take a risk and see how it affects your game. Besides, no-one said you had to catch it, did they?
2. A little warning (oh the irony). Not that it's ever happened before up till now, but Glitch city may freeze your game. I went a little too far to the right, and the glitch froze my game. Oh, and I happened to find a level 31 Nidoqueen, level 100 Mew and a level 70 Mewtwo. What a shame I couldn't save it after I caught them...

When you get the ability to cut, cut down one of the trees, stand where it used to be, and save. Turn your game off... When you turn it back on, you should be standing where the tree was (I don't think this will screw up your game)...

Also, if you don't want to fight Pokemon, but you have to go through tall grass, use cut on the grass to temporarily remove it...

Want to get 1,998 coins for the Game Corner? First, get 999 coins in your coincase and put it in your 6th item slot. Then, encounter MissingNo or GB 'M GB.
You will have 1,998 game coins, but you can not get rid of your extra coincase.

Do you want to get Mew and other Pokemon like Gengar and Scyther early in the game?
Then do what I say...
1. Start a new game
2. Make your way to Cerulean city
3.Beat all trainers on nugget bridge and Gary
4.Make sure you havent battled the trainer in the grass left of nugget bridge
5. Catch an abra
6.move forward until you are above the trainer but he is not in sight
7 Save the game and move a steop down and press the start button really quick
8.Teleport back to the Cerulean pokemon center
9. Battle the first trainer in the Gym to get mew
10.Once you have beat her make your way up to the trainer you ran away from
11.Your start button will atomatcally pop up
12.Press B and mew will pop up.
13.To get Gengar and Scyther repeat the steps but battle all the trainers to bill's house


This really works and it helps to get rare pokemon quickly in the game

Glitchy music
First get an abra by nugget bridges grass. Then go heal your pokemon at Cerulean city.Next go through the tunnel and don't go in the grass outside of it.Save.Now there will be a trainer to the left. Go along the right side of the path so he is one square to the left. Now take one step left and quickly press start.Use your abra to teleport to Cerulean PKMN center and go back through the path to vermillion city.

DO NOT BATTLE ANYBODY ON YOUR WAY TO VERMILLION!Now go to the mart but don't go inside instead go back up the path. before you meet the JR.trainer he will battle you. Make sure you beat him!Now go up you should have a hard time moving. now go into the grass and battle a Pokemon, beat it and head back to Vermillion about halfway there the regular music will stop and you will hear Pokemon noises and messed up music. It is kinda creepy because you can't move and none of your buttons work. You will have to turn your gameboy off and on again.

Thanks

First, start off with CHARMANDER, then level up only CHARMANDER until you get to PEWTER CITY (Level 16 - 20) should be enough!) you can evolve him (level16) if you want, but I managed to beat BROCK with him as CHARMANDER even though he should of evolved into CHARMELEON.

Get some POTIONS (about 4 or 5), then take on the other trainer inside the Gym, after you've done that, heal it at the POKEMON CENTER (don't use your POTIONS just yet, you'll need them when you take on BROCK. Then SAVE before you begin the battle, then if it goes wrong you can resume where you were and battle him again. He will first let out his Level 12 GEODUDE, use CHARMANDERS EMBER attack until it faints, use your POTIONS if CHARMANDERS health is too low after battling GEODUDE.

Next BROCK will let out ONIX (Level 14), don't panic! Just use EMBER all the time until you've won and use the POTIONS when neccessary and HEY PRESTO! You now have the first badge!

HINT: When BROCK's ONIX uses BIDE, just use a non-damage attack such as LEER. Usually BIDE will do double the damage you gave to the POKEMON, but as you don't damage ONIX in any physical way, the attack will miss and CHARMANDER (or any other POKEMON) won't be hit!

To beat MISTY with only CHARMANDER (or CHARMELEON, depending if you evolved him or not), first, beat your RIVAL, NUGGET BRIDGE and all the trainers as you go towards BILL's HOUSE and after you've left BILL's HOUSE, travel downwards until you come to a house which has been robbed (if the man inside the house says ' those miserable ROCKETS!' you'll know that you've come to the right place, go into the back yard, SAVE then go towards the man standing there, and he'll want to fight you.

Beat him, then he will give you the DIG TM, teach it to CHARMANDER/CHARMELEON, then go back into CERULEAN CITY and heal CHARMANDER/CHARMELEON at the POKEMON CENTER, buy more POTIONS (about 5-6 should be enough,depending on how well you've raised him), then use the DIG attack to beat the two trainers in the GYM (DO NOT USE YOUR POTIONS!!), then heal him again, then take on MISTY (SAVING before you do so), keep using DIG and using your POTIONS (when neccessary),then HEY PRESTO !! Your second badge!!

I really hope this helps and you don't have to do this, but I did and I definately found beating the first two trainers easier.
PS- Don't forget to still catch POKEMON on the way!!!

ok this is how it works:
First you must have fly.Go back to Pewter city and go all the way to Mt.Moon.Stop at the entrance.If u want to capture it you'll have to have a lvl.7 pokemon or weaker or a ultra ball or master ball.Now go inside and as soon as you go in press start.You must have precise timing.Walk a step forward and you should find a lvl.7 Slobro!Isn't that great!
Note:this trick might not always work so you'll have to try it a couple times.

Yes, believe it or not, it can be done without a GameShark or other cheating device. Here's what you'll need to do:

Restart your game and play until you get HM02 Fly from the house west of Celadon City.
DO NOT fight the following trainers:
The Youngster with a Slowpoke (Level 17) on the road to Bill's house (Route 25). He is the fourth trainer after you cross Nugget Bridge, standing directly above a female trainer and facing north.
The Gambler with two Poliwags and a Poliwhirl (all Level 22) between Lavender Town and Saffron City (Route 8). He is standing just east of the entrance to Saffron City, facing north toward the door of the Underground Path.
Carefully follow the series of steps illustrated below.

Make sure you have a Pokémon that knows Fly. On Route 8, stand in front of the door of the Underground Path. Save your game, since saving after this point will disrupt the procedure.
Walk down one step and immediately press Start. If you succeed, the menu will pop up before the Gambler "sees" you. Go to the Pokémon list and fly to Cerulean City.
The Gambler will see you just before you fly away.
Your Start button will no longer function. Go north across Nugget Bridge and head east until you find the trainer in this picture (he's the Youngster described above).
If you walk right up to the Youngster, the game will lock up, so you'll have to let him see you and walk up to you. Defeat his Slowpoke (afterwards, your Start button will work again), then fly to Lavender Town.
Head west into Route 8.
As soon as you enter the narrow path, the menu will pop up by itself. Press B to exit...
...and look who it is! Mew will be at Level 7 and its only attack will be Pound. Pokéball, go!

Once you've caught Mew, you can save your game without any ill-effects.

There are two alternative ways to enter Route 8 and trigger Mew after beating the Youngster. If you have access to Saffron City, you can fly there and go through the eastern city gate. Also, you can fly to Celadon City, head east to Route 7, enter the Underground Path, and emerge back in front of the Gambler.

If you do the Missingno cheat, and then continue surfing, you will run into over level 100 Pokémon. The Pokémon depends of your name in the game.

The 2nd, 4th and 6th letter determines the level and 3rd, 5th and 7th letter determines the Pokémon. 1st letter does nothing. Example: If your name is "ABCDEFG", there comes L129 Golbat, L131 Snorlax and L133 Missingno. Note: If in your name is not 7 letters, the last letters are "empty".

Letter: level: Pokémon

Empty: 0/80 'M
Space: 127 Missingno.
A: 128 Golduck
B: 129 Hypno
C: 130 Golbat
D: 131 Mewtwo
E: 132 Snorlax
F: 133 Magikarp
G: 134 Missingno.
H: 135 Missingno.
I: 136 Muk
J: 137 Missingno.
K: 138 Kingler
L: 139 Cloyster
M: 140 Missingno.
N: 141 Electrode
O: 142 Clefable
P: 143 Weezing
Q: 144 Persian
R: 145 Marowak
S: 146 Missingno.
T: 147 Haunter
U: 148 Abra
V: 149 Alakazam
W: 150 Pidgeotto
X: 151 Pidgeot
Y: 152 Starmie
Z: 153 Bulbasaur
(: 154 Venusaur
): 155 Tentacruel
:: 156 Missingno.
;: 157 Goldeen
[: 158 Seaking
]: 159 Missingno.
a: 160 Missingno.
b: 161 Missingno.
c: 162 Missingno.
d: 163 Ponyta
e: 164 Rapidash
f: 165 Rattata
g: 166 Raticate
h: 167 Nidorino
i: 168 Nidorina
j: 169 Geodude
k: 170 Porygon
l: 171 Aerodactyl
m: 172 Missingno.
n: 173 Magnemite
o: 174 Missingno.
p: 175 Missingno.
q: 176 Charmander
r: 177 Squirtle
s: 178 Charmeleon
t: 179 Wartortle
u: 180 Charizard
v: 181 Missingno.
w: 182 Missingno.
x: 183 Missingno.
y: 184 Missingno.
z: 185 Oddish
PK: 225 Gary
MN: 226 Prof. Oak
-: 227 Chief
?: 230 Rocket
!: 231 Cooltrainer Male
Male: 239 Blaine
/: 241 Gentleman
.: 242 Gary
,: 244 Lorelei
Female: 245 Channeler

Beware! The trainers may screw up your game! If you catch Missingno, your graphics may screw up! If you only SEE Missingno, your Hall Of Fame in PokéCenter Screws up. You have there level 198 Kakuna, level 999 Rattata etc.

The Pokémon that you catch with the Missingno cheat screws not up your game, but Missingno may do it if you catch it!

If an over level 100 Pokémon wins a battle, it will come back to level 100. You know that you can't give a rare candy to level 100 Pokémon, but you can do this with an OVER level 100 Pokémon.

If you give a rare candy to level 255 Pokémon, it will come to level 0!!! All these codes works in both Red and Blue version.

if you want to get a lot of 1 or more items follow these instructions " go to Viridian city and talk to the man who says I've just had my coffee and i feel great and when he asks you if you're in a hurry say no then fly to cinnabar island. Surf up and down right side of it so you're half on land and half on water when you hit a missingno beat it but before you do make sure the item that you want lots of is in the sixth place then after you have beaten it you should have by the item you wanted lots of it should say 9* but when you come to 99* be alert because when you get to 1 of the item you must do the cheat again or else you will run out of that item

Glit City

Go Safari zone and walk about a bit and come back, if the man says "leaving early" say: No.

Go back in again he'll ask you the same question, this time say: No, save your game and swith your gameboy off and swith it back on again ....continue.

Come back out and the man will say "do you want to jion the hunt?" say: No. Fly to sinabare island, go to the right side where the gym is then surf.

Go up & down when it says P. A. Come out of Safari zone and you will be in a new world!

How to duplicate items:

Put an item with a x symbol in the sixth position on the item list.

Go to the man in Viridian City and ask him how to catch a Pokemon.Then fly to Fushcia City and go south until you reach the water.

Walk to the wall on the left and face the water.Surf and follow the wall until you reach the shore of Seafoam island.

Dont go on land but surf up and down on the coastline.Soon you will find a pokemon called Missingno.Dont catch it or fight it.

Run away from missingno. and the sixth item on the item list will be duplicated.

If you want to get Saffarie Pokemon without a time limit just go into the saffarie zone and collect as many pokemon as you can.

When your time runs out fly to cinnabar island.

Now surf up and down by the side of the gym and when a pokemon appears it will be a pokemon from the saffarie zone.

Talk to the guy at the top of viridian city and when he says "Are you in a hurry?" say NO.Then fly to cinnabar island and surf on the edge of it to the right.

You may see a couple of level 100-200 pokemon but when you find a missingo.

you can either kill it to make your sixth itemx165 or you can capture it,give it a rare candy and watch it evolve into a Kangaskan(sorry if it's spelt wrong!) or if you dont have any rare candy's put it in battle so it grows a level!!!!!!

To Duplicate Items:

Your gonna need pokemon that know surf!

1)Talk to the guy who teaches you how to catch pokemon.(He's in Vigidian City).

2)When he says "are you in a hurry" say NO.

3)Go to Cinnabr Island.

4)Surf on the right sea side of Cinnabr Island.

5)Lots of good pokemon will apper like for example weexing I think L:28, snorlax L:148! or L:128!, pontynia I think L:43, Poliwrath, and exc...

6)A pokemon called Missingno. will apper, DON'T CATCH IT OR ELESE IT WILL RUIN YOUR GAME!!! they come in different levels, like 146, 89, 48.

P.S.: I've got no clue if there a pokemon or not, water or flying, legandary or not.

This is how you can get 100 of an item. First talk to the guy that show you how to catch a Weedle. Let him show you how to catch it.

Then FLY to Cinabar Island and surf on the right side of the gym thats half land and half water.

Surf until you encounter a Pokemon named MissingNo. either run away or defeat him.

Still whatever you do DON'T CATCH HIM beacuse it will mess up your game.

This code really works. You can even duplicate master balls and Rare Candy's!

Infinite Health

This code works i promise.
First do the MissingNo.

Code (get to cinnabar island, fly to viridian City, say "no", fly to cinnabar island, surf along the east coast)
Keep getting into battles until you find a 100+ pokemon, preferrably Snorlax.

Duplicate rare candies and feed them to to your pokemon until he is level 255.
After this Store him in the pc.

Get him back out and his level will go back to what it was when you caught it, but is HEALTH WILL NOT!

just do this as many times as you want and his health will keep rising.

WARNING: do not give it any potions.

This code works but as far as I know it only works with snorlax, you can try others....'

This Cheat is for an easier way to get to Glitch City and get a good chance catch a lot of safari pokemon without safari balls.

1. Go to Fushia City and get to the safari zone.

2. Enter the Safari and go right back out and the guy will ask you if you are leaving early say no and go back in.

3. Save your game once you get back in.

4. Turn your game off and turn it back on.

5 leave the safari zone this time the guy wont ask you if you are leaving early instead he will ask you if you want to join the hunt say NO.

6 After you leave fly to Cinnabar Island and surf on the edge of blaines gym you willd alot of safari pokemon and after awhile a message will come up "Ding Dong your time is up" it will bring you back to the safari zone and once you walk out you will be in glitch city.

If you get stuck just some were.

How to get the legendary birds

Zapdos:you find it in the power plant.

Moltres:you find it in victory road.

Artiquno:you find it in saeform islands.

When starting your game and the words gamboy fash press these codes.
Down:Pastel colours
Down and B:Autumn colors.
Down and A:More Autumn colors.
Right:Christmas colors.
Right and B:Whats light will be dark and whats dark will be light.
Right and A:Green.
Up:choclate colors.
Up and A:More choclate colors.
Up and B:Dark
Left:LIke Blue version.
Left and B:Black and white
Left and A:cadet Blue
One of these makes rock tunel bright and I think It's right and B.

NEVER RUN OUT OF PP FOR A MOVE:



This code will lead you to a PP UP to clone in a missingNo. trick!!!

FLY to Celadon City. You should be in front of the Pokemon Center.



Without pressing anything else, press down twice. Press left four times. Press down eight times.Press right nine times. You should be at a cuttable bush. CUT it down.



After cutting down the bush, Press right twice. Press up four times. Now press A. You should now have a PP UP!!!



Clone it with the MissingNo. trick to get unlimited PP UPs!!!

MISSINGNO.and a bonus: First you have to beat the pokemon league once or a couple of times then do the missingno cheat then go to any pokemon cetre.



Cinnabar island would be best.



Anyway look at your hall of fame,See it looks funny.bye.

There are 2 moon stones in MountMoon. The first one is at the upper-left corner above the Hiker with the 2 Geodudes and Onix level 10. The second one is in the area where you get a fossil. Go to the land where there are 2 fossils.



Don't go on the land, just stand in front of it. See the walkway on the right wall and go to it. There will be nothing there, but keep going until you hit the wall.



Press A and it will say: "You found a MOON STONE!"