Saving Time in the Safari Zone
When you are in the Safari Zone, it counts the number of steps you take to determine the amount of time you have left. Well, if you want to catch a rare Pokémon, but don't want to run out of time, enter the grass, then lightly tap the directional pad. You will change the way you are facing, but it will not count as a step. You can have near-infinite time in the Safari Zone doing this. It is helpful when some Pokémon, such as Chansey, appear in only one section of the Zone.
Contributed By: Destroyer2000.
Get the chance to get the 3 dogs!
In FireRed, and LeafGreen you can get the 3 dogs depending on your starter pokemon. Here are the steps:
1: Beat the Elite Four
2: Randomly in the wild, you can get 1 of the 3 dogs by your starter pokemon.
Unlockable How to Unlock Entei in the wild Your starter must of been Bulbasaur. Raikou in the wild Your starter must of been Squirtle. Suicune in the wild Your starter must have been Charmander.
Contributed By: JediSage99.
Getting the National Dex (JP Version)
Unlockable How to Unlock National Dex Once you have beaten the Elite 4 and have more then 60 pokemon in the pokedex, go to Pallet Town and see the Professor. He gives you and Gary the National Dex, which allows you to view the entries of all 386 pokemon.
Contributed By: Starkin Warrior.
How to get the Three Unique attacks
You have to have gone to the second island. Your pokemon have to trust you enough and you have to have the one of three starters.(only the one you started with can learn these moves. (Frenzy Plant, Hydro Cannon and Blaast Burn)
Unlockable How to Unlock (frenzy plant, hydro cannon, and blast burn) get to the second island and have your pokemon trust you enough
Contributed By: uniqueskillz517.
There are places in the game where important people/Pokemon have stood at one point. If you use the Itemfinder on the EXACT spot where they were, a special item will be found which is usually very rare. You cannot find these items any other way.
Unlockable How to Unlock Leftovers Use Itemfinder where the 2 Snorlaxes appeared. Macho Brace Use Itemfinder where Giovanni was in Viridian Gym. Soothe Bell Use Itemfinder where Mr. Fuji was stinding in Pokemon Tower
Lorelei's Doll Collection
For each 25 times you enter the Hall of Fame, she'll add a new doll to the collection in her house on Four Island. She'll stop after adding a total of eight dolls.
Unlockable How to Unlock New Pokemon doll in Lorelei's collection Enter the Hall of Fame 25 times
Nugget on Three Island
When you first visit Three Island, you'll come across a miner looking for gold in one of the caves. If you return to him after beating the Elite Four, he'll hand over a Nugget, an item that can be sold at high prices.
Unlockable How to Unlock Nugget Beat the Elite Four, then talk to the miner on Three Island.
The Pokemart on Two Island
When you first visit Two Island, the local Pokemart will be severely limited in the items for sale. As you complete various tasks, more items will become available.
Unlockable How to Unlock Lava Cookie Complete the Network Machine Lemonade Obtain the National Pokedex MooMoo Milk Obtain the National Pokedex Repeat Ball Complete the Network Machine Soda Pop Rescue Lostella Timer Ball Complete the Network Machine Ultra Ball Rescue Lostella
Trainer Card Stickers
Go to 'Island 4' and go to the bragget house where he asks you what you want to Brag about.
Unlockable How to Unlock Egg Hatching Sticker - 1st Lv Hatch 1 Egg. Egg Hatching Sticker - 2nd Lv Hatch 100 Eggs. Egg Hatching Sticker - 3rd Lv Hatch 200 Eggs. Egg Hatching Sticker - 4th Lv Hatch 300 Eggs. Hall of Fame Sticker - 1st Lv Beat the Elite Four, 1 time. Hall of Fame Sticker - 2nd Lv Beat the Elite Four, 40 times. Hall of Fame Sticker - 3rd Lv Beat the Elite Four, 100 times. Hall of Fame Sticker - 4th Lv Beat the Elite Four, 200 times. Multibattle Link Win Sticker - 1st Lv Win 1 Battle. Multibattle Link Win Sticker - 2nd Lv Win 20 Battles. Multibattle Link Win Sticker - 3rd Lv Win 50 Battles. Multibattle Link Win Sticker - 4th Lv Win 100 Battles.
Contributed By: ShinyCelebi.
Trainer Card upgrades
By completing certain tasks, it is possible to upgrade your trainer card a total of four times, from the intital blue to green, bronze, silver, and gold. The upgrades can be obtained in any order, and each one adds a star to your trainer card and upgrades the color.
Unlockable How to Unlock Star #1 Defeat the Elite Four Star #2 Complete the Kanto Dex (Pokemon 1-150) Star #3 Complete the National Dex (Except Mew, Celebi, Jirachi, Deoxys) Star #4 Score 200 jumps in Pokémon Jump and 200 berries in Dodrio Berry Picking
Contributed By: GauRocks.
Unlock trading to and from Pokemon Ruby, Sapphire, and Colosseum
At the beginning of LeafGreen/FireRed, you can only trade between the two respective versions. However, if you complete a certain task in the game, you can trade to Pokemon Colosseum on the Gamecube, and Pokemon Ruby/Sapphire, the two other Pokemon games on the GBA.
Unlockable How to Unlock Trading to and from Pokemon Ruby,Sapphire, andColosseum Defeat the Elite Four, then retrive both the Ruby from Mt. Ember and the Sapphire from Five Island Rocket Warehouse, then give them both to Celio
Unlocking mini-games on Two Island
When you have access to Two Island, save the Game Corner owner's daughter, then deliver the package. The grateful owner will open some mini-games that you and your friends can play.
Unlockable How to Unlock Mini-Games on Two Island Save the Game Corner Owner's daughter, then deliver the package.
Every time you encounter a pokemon you have a 1/8192 chance of the pokemon being a different color, this is called a shiny pokemon
Contributed By: Y2JosHBK386.
Determining Pokemon's feelings towards you.
When you use an item on one of your Pokemon outside of a battle, such as a Potion, the Pokemon will either move closer or away from you in the short intermission sequence. How far the Pokemon moves depends on how much it likes you. If it does not move at all, it feels neutral.
Contributed By: Bendilin.
You don't need to find one pokemon of each gender in order to breed them. You simply have to put your pokemon of choice and a ditto into the daycare center. After a short while, the old man will tell you that they found an egg, and when it hatches, it will be whichever pokemon you matched up with Ditto
Contributed By: squalabaloo.
On Island 5, there is an area to the northeast called Gorgeous Resort. There are 2 wealthy trainers you can face. They are named Lady Jacki and Lady Gillian. Lady Jacki gives you $10000 if you beat her($20000 with Amulet Coin) and Lady Gillian gives you $9800($19600 with Amulet Coin). The pokemon they use also carry expensive items. Jacki's 2 pokemon carry Stardust, Gillian's 2 Mareep have Stardust, and Gillian's Flaafy has a Nugget. Just use Thief or Covet to obtain these items.
Contributed By: Crimson1313.
In the Gamecorner in Celadon City, go talk to the man at the far right Slots. He will give you 20 free coins. Talk to the man on the slots beside him. He will give you 20 free coins, also. Go to the left side of the Gamecorner. Talk to the guy that looks like a fisherman, and he will give you 10 free coins.
Contributed By: Shop Head.
Loose change in Game Corner
Apparently, the folks in the Game Corner don't hold on to their coins very well!
By using the Itemfinder or looking by yourself, you'll find that many spots in the Game Corner have some number of coins lying on them. If you find them all, you'll find 200+ coins!
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More Pokemon LeafGreen Version from GameSpot