Essential Pokemon Leaf Green Cheats for Rare Candies, Master Balls, and More

Playing Pokemon Leaf Green in 2026 remains a pinnacle of nostalgia for GBA fans. Whether you are revisiting Kanto on an original Game Boy Advance or using modern emulators like mGBA, My Boy, or Delta, certain grinds like leveling up for the Elite Four or hunting for a 1% encounter rate Pikachu can be exhausting. This is where Pokemon Leaf Green cheats come into play. These codes, primarily designed for GameShark, Action Replay, and Code Breaker, allow players to bypass the tedious aspects of the game and focus on strategy and collection.

Using cheats requires a clear understanding of your game version. Most players use the US v1.0 ROM (often labeled as the 'Independent' version), which is compatible with the vast majority of codes found online. However, if you are playing on v1.1, some standard codes may fail or cause your game to crash. It is always advisable to back up your save file before activating any multi-line codes to prevent data corruption.

Understanding Code Types and Version Differences

Before entering any codes, you must identify if you are using a Code Breaker, GameShark v3, or Action Replay cheat. Most modern emulators automatically detect the type, but manual selection is sometimes necessary.

v1.0 vs v1.1: The primary difference lies in the memory addresses. If a code for 'Walk Through Walls' doesn't work for you, it is likely because the code was written for a different version of the ROM. This guide focuses on v1.0 codes as they are the industry standard, but specific Master Codes for v1.1 are included where applicable.
The Master Code Requirement: Many complex cheats, such as wild Pokemon modifiers and legendary encounters, require a 'Master Code' (also known as an (M) code) to be active. This code tells the game to allow external memory overrides.

Essential Item Cheats (Code Breaker)

These are the most popular codes because they save hours of grinding. For item codes, you typically check your PC (Player's PC) in a Pokemon Center to withdraw the items.

Unlimited Rare Candies

This code places an infinite amount of Rare Candies in your PC. Cheat Code: 82025840 0044 Note: Leveling up exclusively with candies may result in lower stats than manual training due to missing EVs (Effort Values).

Unlimited Master Balls

Never worry about a legendary Pokemon fleeing again. Like the Rare Candy cheat, these will appear in your PC. Cheat Code: 82025840 0001 Instruction: After activating, the Master Ball may show a quantity of '0' in the PC. You can still withdraw as many as you need.

Max Infinite Money

Purchase everything in the Celadon Department Store without checking your balance. Master Code: 00000554 000A 101DC9B0 0007 83005000 0000 83005002 0000 Money Code: 82025838 104E 8202583A E971

World and Gameplay Modification

Changing the rules of the Kanto region can make exploration significantly more efficient.

Walk Through Walls (GameShark v3/Action Replay)

This is perhaps the most famous cheat. It allows you to bypass ledges, trees, and water, and even enter locked areas early. v1.0 Code: 509197D3 542975F4 78DA95DF 44018CB4 v1.1 Code (Code Breaker): Master Code: 928817AD 553B / 540555A6 779B / 374D7A76 7115 Code: 44645C94 C2DC / 4D741CC0 F04D / 4551D1E7 541F / FA5AF752 09B0

No Random Battles

If you are tired of Zubats in Mt. Moon, this code is a lifesaver. Cheat Code: A202166E FF00 820255AC 0000

Unlock All Gym Badges

Useful for players who want to use high-level traded Pokemon immediately. Cheat Code: EFCE867D 5403D40D Instruction: Enter the code, enter and exit any building five times, and then check your Trainer Card.

Pokemon Modification Cheats

These codes allow you to encounter specific Pokemon in the wild or modify the attributes of the ones you catch.

Shiny Pokemon Encounter (GameShark v3/Action Replay)

This code forces any wild Pokemon you encounter to be Shiny. Note that this often alters the Pokemon's nicknames to gibberish or sets their IVs to specific patterns. Cheat Code: A74320F4 175B5B22 18452A7D DDE55BCC 7FE56658 F483AC73 F8B8373C BAB2B56F

Pokemon Nature Modifier

For competitive players or those who want the best stats, you can force a specific Nature (like Adamant for Physical attackers or Modest for Special attackers). Base Code: AA3BB0ED 41CD5D95 + [Nature ID]

Nature ID List:

Adamant: 5EB8DEEE 692ED298
Modest: E1EB2109 4480C28D
Jolly: E9EC2CBF A7EDD4A7
Timid: 1BC372C9 06B4D17F
Bold: 35EB915F 08F33974
Calm: 31F62F82 D9A0C100
Hardy: D0E34D66 5796A7D3
Lonely: D73BC50A 5F47AA0E
Brave: E485844D 2F24038C

Wild Pokemon Encounter List (Code Breaker)

To use these codes, you must first activate the Master Code for v1.0: 0000BE99 000A 1003DAE6 0007

Then use the prefix 83007CEE followed by the four-digit Pokemon ID. Replace YYYY in 83007CEE YYYY with the codes below:

Kanto Starters and Evolutions

Bulbasaur: 0001
Ivysaur: 0002
Venusaur: 0003
Charmander: 0004
Charmeleon: 0005
Charizard: 0006
Squirtle: 0007
Wartortle: 0008
Blastoise: 0009

Rare and Legendary Encounters

Pikachu: 0019
Dratini: 0093
Dragonair: 0094
Dragonite: 0095
Articuno: 0090
Zapdos: 0091
Moltres: 0092
Mewtwo: 0096
Mew: 0097 (Warning: Mew caught this way may not obey commands unless the 'Obedience' flag is fixed via hex editing).
Entei: 00F4
Raikou: 00F3
Suicune: 00F5
Lugia: 00F9
Ho-oh: 00FA
Celebi: 00FB

Common Kanto Dex Additions

Caterpie: 000A
Metapod: 000B
Butterfree: 000C
Weedle: 000D
Kakuna: 000E
Beedrill: 000F
Pidgey: 0010
Pidgeotto: 0011
Pidgeot: 0012
Rattata: 0013
Raticate: 0014
Spearow: 0015
Fearow: 0016
Ekans: 0017
Arbok: 0018
Raichu: 001A
Sandshrew: 001B
Sandslash: 001C
Nidoran (F): 001D
Nidorina: 001E
Nidoqueen: 001F
Nidoran (M): 0020
Nidorino: 0021
Nidoking: 0022
Clefairy: 0023
Clefable: 0024
Vulpix: 0025
Ninetales: 0026
Jigglypuff: 0027
Wigglytuff: 0028
Zubat: 0029
Golbat: 002A
Oddish: 002B
Gloom: 002C
Vileplume: 002D
Paras: 002E
Parasect: 002F
Venonat: 0030
Venomoth: 0031
Diglett: 0032
Dugtrio: 0033
Meowth: 0034
Persian: 0035
Psyduck: 0036
Golduck: 0037
Mankey: 0038
Primeape: 0039
Growlithe: 003A
Arcanine: 003B
Poliwag: 003C
Poliwhirl: 003D
Poliwrath: 003E
Abra: 003F
Kadabra: 0040
Alakazam: 0041
Machop: 0042
Machoke: 0043
Machamp: 0044
Bellsprout: 0045
Weepinbell: 0046
Victreebel: 0047
Tentacool: 0048
Tentacruel: 0049
Geodude: 004A
Graveler: 004B
Golem: 004C
Ponyta: 004D
Rapidash: 004E
Slowpoke: 004F
Slowbro: 0050
Magnemite: 0051
Magneton: 0052
Farfetch'd: 0053
Doduo: 0054
Dodrio: 0055
Seel: 0056
Dewgong: 0057
Grimer: 0058
Muk: 0059
Shellder: 005A
Cloyster: 005B
Gastly: 005C
Haunter: 005D
Gengar: 005E
Onix: 005F
Drowzee: 0060
Hypno: 0061
Krabby: 0062
Kingler: 0063
Voltorb: 0064
Electrode: 0065
Exeggcute: 0066
Exeggutor: 0067
Cubone: 0068
Marowak: 0069
Hitmonlee: 006A
Hitmonchan: 006B
Lickitung: 006C
Koffing: 006D
Weezing: 006E
Rhyhorn: 006F
Rhydon: 0070
Chansey: 0071
Tangela: 0072
Kangaskhan: 0073
Horsea: 0074
Seadra: 0075
Goldeen: 0076
Seaking: 0077
Staryu: 0078
Starmie: 0079
Mr. Mime: 007A
Scyther: 007B
Jynx: 007C
Electabuzz: 007D
Magmar: 007E
Pinsir: 007F
Tauros: 0080
Magikarp: 0081
Gyarados: 0082
Lapras: 0083
Ditto: 0084
Eevee: 0085
Vaporeon: 0086
Jolteon: 0087
Flareon: 0088
Porygon: 0089
Omanyte: 008A
Omastar: 008B
Kabuto: 008C
Kabutops: 008D
Aerodactyl: 008E
Snorlax: 008F

Important Safety Measures: Avoiding the 'Bad Egg'

A 'Bad Egg' is a glitch item that can appear in your party or PC if you use corrupted codes or catch a Pokemon that shouldn't be caught (like a Trainer's Pokemon) without the proper precautions. Bad Eggs can never be hatched and can sometimes spread, corrupting other slots in your PC.

How to Steal Trainer Pokemon Safely

If you use the 'Catch Trainer's Pokemon' cheat, you must follow these steps:

Activate the code: 4D83B1BF E0F5F507 / 8E883EFF 92E9660D / B6C5368A 08BE8FF4 / 90B4977C C0151DC2.
During the battle, before throwing the Pokeball, press L+R multiple times.
If you still receive a Bad Egg, do not save. Restart the game and try again.

Technical Guide for Emulator Users

How you enter these codes depends heavily on your platform. Here is the breakdown for 2026's most popular emulators:

mGBA (PC/Mac)

Go to the Tools menu.
Select Cheats.
Click Add New Cheat.
Paste the code and ensure the 'Type' matches (GameShark or Code Breaker).

My Boy (Android)

Open the in-game menu and tap Cheats.
Tap New Cheat.
Enter a name (e.g., 'Rare Candy').
Select the correct 'Cheat Type' (Auto-detect usually works, but manual is safer for Code Breaker).

Delta (iOS)

While the game is running, tap the Menu button.
Tap Cheats.
Tap the '+' icon.
Choose between Action Replay, GameShark, or Code Breaker and paste your code.

Troubleshooting: Why Codes Fail

If you find that your Pokemon Leaf Green cheats are not working, check the following common issues:

Too Many Active Cheats: Activating 'Walk Through Walls', 'Infinite Money', and 'Wild Pokemon Modifier' simultaneously often causes the game engine to freeze or characters to turn into invisible walls. Turn codes on one at a time, get what you need, save, and then turn them off.
Conflicting Codes: Some codes overwrite the same memory address. For example, two different 'Wild Pokemon' codes cannot be active at once.
Master Code Missing: As mentioned, most modifier codes require the Master Code to be the first entry in your cheat list.
ROM Version Mismatch: Always verify if you are using v1.0 or v1.1. If you aren't sure, try the v1.0 codes first, as they are significantly more common.

While cheating can sometimes take away the challenge, it provides a unique way to experience Kanto without the limitations of 2004-era grinding. By using these codes responsibly and keeping backups of your save files, you can build your dream team and complete your Pokedex in record time.