Back To Mewtwo's Opinion 2000!
 
99 Masterballs
First, put the item you want to duplicate as the 6th item on your list. go to Viridian City and talk to the old man. Let him teach you how to catch a Pokémon. Then, right after he's done, fly to Cinnabar Island and surf up and down the right coast. You should see a Missingno. DO NOT CATCH IT. Instead, run. Then, look in your item list at the 6th item. It should say "X (symbol) 9". That means you have 99 of that item. You could do this with nuggets and sell them in a PokéMart for a whopping 999, 999 dollars! -- gary1298
100 Casino Coins
In the game corner, there are 3 machines that you can't use. If you visit each one (from left to right, without going to any others), then go to the shelves in the upper right hand corner, and the 3rd shelf from the left will have 100 coins!!! -- stevethegreat
118 of anything
you need surf & fly
put the item you want 118 of in the 6th spot on your items list. fly to varidian city then go north to the old man who says i've had my coffe now and i feel great yada yada yada say no when he asks he will show you how to catch a level 5 weedle wow..... after that fly straight down to cinnabar island and surf up and down the east coast half in and half out of the water soon you will find a level 0 or 80 missingno fight him but dont catch him he will stuff your game up when done look at your items the one in 6th spot will have a flower in front of the number you can even do it to rare candy or master balls oh by the way if you do it to the master balls then keep surfing up and down you will find some super pokemon i have found nidorino, golduck ,golbat all over level 100. -- pikachar
150 items
Put the item you want to duplicate 6th from the top then goto Viridian City and talk to the man who teaches you how to catch a pokemon. Let him teach you, then fly to Cinnibar is. and surf up and down the right so your fin is touching the land. In red version you will meet golbat and marowak level 123-167 then you will meet missing no. Beat him and then you have 150 of the item you selected. -- gary1298
Always Catch the Pokémon!
When you find a pokemon that is hard to catch use this cheat to capture it with ease! When you choose to use a Poke/Great/Ultra Ball right when it gets released press: Up, B The Ball should act like a Master Ball! Note* This cheat has to be performed exactly right! -- waterMisty
Another Way of Making a Poke ball as a Master ball
1. Take any kind of poke ball except for the master ball.
2. Throw the poke ball.
3. Press up and B.
That would make the poke ball shut as tight as a master ball. -- codemaster2000
Catch level 100+ Pokemon
First you need a Pokemon with HM02 (Fly) and HM03 (Surf). Go to Viridian City and talk to the Old Man. He will ask you if you are in a HURRY: select NO. He will show you how to catch Pokemon. When he's done, Fly to Cinnabar Island. Then surf on the RIGHT coast. Make sure you're 1/2 on land 1/2 on water. Using this method, you can Catch a Level 138 Haunter, L128 Snorlax(has Hyper Beam),L135 Golduck And a L144 Missingno. Unfortunately, they will revert back to Level 100 if they gain any experience points. Rare Candy is the only thing that raises their level. However, they can be used in a two-player battle without losing their level. -- pikap231
Fight Safari Zone pokemon somewhere else
To fight Safari Zone pokemon somewhere else, you must go to the Safari Zone and let the time run out. Once that has happened,you must fly to Cinnabar Island and use Surf and Surf up and down the east coast and you will find Safari pokemon. -- pokeman12
Find Pokémon over level 100
Fly to Viridian City and talk to the man that was sleeping when you came to the city the first time. Talk to him and let him show you how to catch a Pokemon. Fly to Cinnabar Island and surf up and down by Blaine's gym and you'll find the missing number Pokemon and Pokemon over level 100. -- gary1298
Fish in Statues!
In some statues, you can fish in then and find rare water Pokemon. -- waterMisty
Free Full Restores
To get free Full Restores at Indigo Plateau's mart/center go to the shop area, and choose the Full Restore. Set the quantity to 20, but even though it says $60000, when you choose yes you will get it all for FREE. -- pokeman12
Get Bolteon
First, get Eevee then, raise it up to level 50 or higer, then make it evolve into jolteon, then beat the elite four using only Jolteon,(u can use items),then fly to cinnabar island surf on the right coast half on half off 5 times up and down each you'll run into a blank space it will say 0123456789???+=_- catch it raise it up to level 50 or above then use a thunder stone on him and viola (you lose Jolteon and 0123456789???+=_-) -- codemaster2000
Get Mew
I have 3 versions for this...
1) (Japanese version only) Go to the SS ANNE and get cut, then get beaten by a trainer, YES! I said get beaten by a Trainer. You will appear outside a Pokecenter.
Get SURF and STRENGTH, and go to the dock of the SS ANNE. Swim to the right. you should see a truck. Move the truck with STRENGTH and you'll find a pokeball with mew inside. -- artichansey
2) Talk to Bill when he's still a Pokémon. (Before you activate the Cell Separation System) Talk to him but doesn't change him back into human form. When he walks into the teleporter, walk out the building and fly to Cinnabar. Surf up/down the coast and get Mew. Don't believe? Try it. You may be asking how you get passed the S.S. Anne. Well you have to trade with a friend for a Pokémon with Cut so you can proceed throughout the game. But apparently, if you talk to Bill, even after he's human, and surf to Cinnabar, you can still get Mew, but it's not confirmed. -- codemaster2000
3) Go into the Cinnabar Mansion building and read all the diaries in order. Then, after using itemfinder all over the building and finding the mist stone, use max repel and Mew will appear! -- gary1298
Get Mewthree
Find the guys glasses which could be anywhere in the game. They are most likely to be in the Silph Co. or the Rocket Game Corner hideout. Use the item finder to find the glasses. When you find the glasses you have to find the guy, who could be anywhere, but he is probably in Saffron or Celadon City. Give him the glasses. He will fly you to the Pokegod Island. There is only 1 PC there and you have to fight to get there. Next to the PC is a guy that you trade with to get Mewthree. -- codemaster2000
Get Missingno
Missingo is Pokemon #000. It does not have a Pokedex entery. It does a lot of damage, but all of its stats are weak. It is most easy to catch by just throwing balls at it. All Missingos have different types. Surf up and down the right side of Cinnibar Island untill you see a pokemon named Missingo or 'M. Be warned that catching this Pokemon can make your graphics all messed up. Catch at your own risk. If you did catch Missingo, use a rare candy on him, and he'll turn into a Kangaskahn. -- Andy9991
Get Togepi
I have found 4 methods...
1) Go through mount moon with a bulbasaur,ivysaur & venusaur. then you go to the safari zone and catch a kangaskhan and tauros. after you get out of there you go to the game corner and win at least 8 coins. NO BUYING. After you go back to mount moon and where you found the fossils tou will see an egg and a guy. he will battle you and you have to lose. He feels sorry for you and gives you an egg and you use a moon stone on it and it will be a togepi. -- gary1298
2) You need to do the access code first which is- have 150 Pokemon, have the three legendary birds at the top of your pokemon list and talk to Mr. Psychic. Beat the Elite 4 ten times in a row with a level 100 Exeggcute, Not Exeggutor and Prof. Oak will give you Togepi. -- codemaster2000
3) Go to Mt. Moon and use the itemfinder to find an egg. If you play the game for a long time after you find the egg it should soon hatch into the pokemon Togepi!(search all over the cave). -- pokeman
4) Go to Celadon with an escape rope and a pokemon with STRENGTH. Go to the Casino. Press B THEN A on the keys. Then talk to everyone in just the CASINO part in a specific order. ( I think it is random in each game I talked to the guy who gives you coins, then the girl next to him, then the people in the isles up to down and left to right, and so did my friend and it worked for him too, but sometimes I think it is just TOTALLY random. ) Then press A THEN B on the keys. Leave. Once you are outside DO NOT MOVE! Use ITEMFINDER. It will beep and a girl named DAISY will appear beside you. She will ask for her keys. Give them to her( it does it automatically ) and she will take you to her " house in the mountains" as she puts it. The screen will black. Then you will be in DAISY'S house. talk to her, she says she will trade you a TOGEPY for a PIDGEY! But beware, if you bring a Pidgey with you it won't work so go outside. There will be a small alcove surrounded by rock where the house is, a fence, a truck, and a tree with a boulder in front of it to the LEFT. Use STRENGTH on the boulder and push it to the LEFT side of the tree to get in an automatic battle with a PIDGEY ( so bring 5 pokemon ONLY to Celadon too!) The right side gives you MASTER BALLS. Then go inside and trade for Togepy. -- littletogepi7
Get Yoshi
You need BOTH Red and Blue for this one, with a Game Link Cable! Beat the Elite Four. Catch all 150 Pokémon. In the Red Version, catch a Dratini. Trade it for any Pokémon on the Blue Version. Evolve the Dratini into a Dragonite. Trade it back to the Red Version. Get out a Fire Stone. Go to the Unknown Dungeon(Cerulean Cave). Go back to where you battled/caught Mewtwo. SURF along the water beside it. Use the Fire Stone (this will work) on Dragonite. Dragonite will evolve into Yoshi! -- codemaster2000
A Man on Blaine's gym!
Before getting the key to Blaine's gym surf right beside the gym then walk to the door and a man will apear on the roof! -- aotep23
Phantom P.C.
Go to Celedon City and go to the motel. Go to the very right of room and go 1 space away from the counter. Press the A button and it should say Ash turned on the P.C! -- professoroak19782
Pokéballs into Masterballs
First, get into a battle with any Pokémon. Then when you're ready, throw a Pokéball, Superball, Great ball or Ultraball at the Pokémon and just when the ball opens, press and hold "A". If you pressed "A" at the exact time the ball opened, the ball acts like a Master ball and catches the Pokémon even though you didn't weaken it or put it to sleep. -- pokeman
Safari Zone Trick
Go to the Old Man in Viridian City who had his coffee, talk to him and say no, you're not in a hurry. Then fly to Fuschia City and go to the Safari Zone. Spend all the time there, then surf to the Seafoam Islands. When you go up and down, you'll find all the Pokemon from the Safari Zone, and you'll get to battle them! -- GymLeader4
Secret Potion
In Viridian city, next to the guy that teaches you to catch a Pokemon, there's a bush. Stand next to it and press "A". It will say you found a potion. -- mrpokeballs
Secret Coins
At the game corner, there are three slot machines that you can't use. Go to them from left to right without visting anything else. Then go up to the bookshelf second from the left, and push "A". You will find 100 game coins. Also, if you walk around pushing "A", you will find more coins in sets of 10 or 20. -- cjack
Secret Pokemon in Hidden Valley!
If you beat The Elite 4 100 times Profesor Oak will take you to a Hidden Valley. There you will find Togepi, Pikablu, Ohoe, etc. -- professoroak19782
Start game in bush
This code is pretty useless but cool. The only thing to do is cut a bush , stand where it was, save, exit, start from continue and you will be inside a BUSH! -- tinytim872
Turn an original pokeball into the master ball
You can turn an original pokeball into the all powerful master ball by following this steps: Get into a battle (not a trainer battle), make sure you have a good supply of pokeballs, throw a pokeball, as soon as it says: "blank" used poke ball, hold the up button on the directional pad and B button. When the pokemon is wobbling inside the ball, wait until the second wobble then release the buttons. If you did it correctly, the pokemon will be caught at any level or strength!! Odds in this happening: 4 out of 5 times. NOTE: This only works with a regular pokeball! You can use great balls or ultra balls but the odds are very slim. Approx. 2 out of 5 times. -- Charizard2933
Unlimited time for Safari zone (Water Pokemon only)
This trick allows an unlimited amount of time in the Safari zone to catch Water Pokemon. Obtain a good or super rod. Next, go to the Safari zone and find some water. Then, go into inventory and use the rod to start fishing. If a "Not even a nibble" message appears, press A, then quickly press Start. If you got into a fight, check the Pokemon out. If it is one you do not have, catch it then quickly press Start after the battle. Return to the inventory and fish again. If you already have this Pokemon, run from it, then quickly press Start and begin fishing again. This will help you catch some good Water Pokemon with plenty of time. -- gary1298

For the following, you need to first do the access code, which is have 150 Pokemon, have the three legendary birds at the top of your pokemon list and talk to Mr. Psychic.

Get Flareth
Trade with your friends until you have 4 moltreses. Now here's the hard part, with the 4 moltreses and no one else with you, talk to the Thirsty girl on the top of the dept. store 100 times. Then, she'll finally get annoyed with you and give you Flareth if you go away. You can also access the other PokeGods with that access code. -- codemaster2000
Get Houou
Go to the exact spot where Mewtwo was and use any item. Then dig out of the cave and Fly to Pallet town, and you mom will have Houou. -- codemaster2000
Get Nidogod/Nidolord
In the unknown Dungeon, in the Left corner beside Mewtwo is a hidden item called Mist Stone. Use the Mist Stone on Nidoking and it turns into Nidogod. Or give it to Nidoqueen and it will evolve into Nidolord. -- codemaster2000
Get Pikablu
In the water near the Unknown dungeon use your Itemfinder to sniff out a secret NOTE, in the water, it cannot be found without the access code. The note says THERE IS A SECRET POKEMON NEAR CINNABAR ISLAND. You go to cinnabar Island and use dig on the east coast, and you'll find Pikablu. -- codemaster2000
Get Togepi
Beat the Elite 4 ten times in a row with a level 100 Exeggcute, Not Exeggutor and Prof. Oak will give you Togepi. -- codemaster2000