Hoenn is huge. If you’ve spent forty hours grinding levels in Victory Road just to get swept by Drake’s Salamence, you know the pain. Pokemon Emerald is arguably the peak of the GBA era, but it’s also a relentless grind. That’s why we look for a shortcut.
You’re likely here because you want a Master Ball or a stack of Rare Candies. Maybe you’re hunting for that elusive shiny Rayquaza and your patience has finally evaporated. I get it. Honestly, using a cheat code for emerald is basically a rite of passage at this point. But most people do it wrong, and then they wonder why their save file is suddenly a mess of "Bad Eggs" and crashing menus.
The Master Code: Don't Skip This
Listen, if you try to warp to Birth Island or spawn a Mew without the Master Code, the game is just going to stare at you. Or crash. Usually crash. In the world of Gameshark and Action Replay, the Master Code acts as the "handshake" between the cheat engine and the game's internal logic.
Most emulators like mGBA or MyBoy! are pretty smart, but they still need this foundation. You have to enter this first.
The Essentials (Gameshark V3/Action Replay):
Master Code (Must be ON)
D8BAE4D9 4864DCE5
A86CDBA5 19BA49B3
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If you're using a physical GameShark SP, you might need an even longer string, but for 99% of people playing on a phone or PC in 2026, those two lines are your golden ticket.
Infinite Items and the Pokemart Trick
There’s two ways to get items. You can either force them into your PC storage or make them appear in the Pokemart for free. I personally prefer the Pokemart method because it feels slightly "cleaner" to the game's memory.
The Rare Candy Cheat
Stop grinding. Just stop. Use this code, and the first slot in any Pokemart becomes a Rare Candy.
Code: 82005274 0044
Once you’ve bought 999 of them, turn the code off. Leaving it on while you try to buy actual Potions later will just keep giving you candies. It’s annoying.
Master Balls for Everyone
Catching Beldum with a standard Poke Ball is a nightmare. It has a catch rate of 3. That’s the same as a legendary. Save yourself the headache.
Code: 958D8046 A7151D70 (plus) 8BB602F7 8CEB681A
This one usually works without a Master Code on most modern emulators, but keep it in your back pocket just in case.
Walking Through Walls and Breaking Boundaries
This is the one that actually makes the game fun after your third playthrough. You can skip the annoying puzzles in the Sootopolis Gym or just walk straight across the ocean to Ever Grande City.
Walk Through Walls Code:
7881A409 E2026E0C
8E883EFF 92E9660D
A quick warning: do not save your game while standing inside a wall or a tree. If you turn the cheat off while you're clipped into a tile, you are stuck there forever. I’ve lost a 60-hour save because I thought I was being clever and saved inside a rock in Victory Road. Don't be like me.
Spawning Specific Pokemon
Let's talk about the Wild Pokemon Modifier. This is where things get risky. You are essentially rewriting the encounter table of the route you're on.
To make this work, you need the Encounter Master Code:
B749822B CE9BFAC1
A86CDBA5 19BA49B3
After that’s active, you add the specific ID for the Pokemon you want. Want a Mew? Use 1066AF88 0007 (CodeBreaker) or find the Gameshark equivalent. The problem is that sometimes the game "remembers" the spawn. You might walk into a patch of grass five minutes after turning the code off and still find a level 5 Deoxys. It’s weird.
The "Bad Egg" Nightmare
If you see a "Bad Egg" in your party or PC, you’ve messed up. This isn't a secret Pokemon. It’s a sign of data corruption. Usually, this happens when you use too many codes at once or use codes meant for the Japanese version of Emerald on an English ROM.
If you get a Bad Egg, do not try to hatch it. Do not try to trade it. It will spread like a virus through your boxes. The only real fix is to load a save from before the egg appeared. This is why you should always—and I mean always—make a manual save state before you toggle a single cheat.
Different Flavors of Cheats
Not all codes are created equal. You'll see people arguing about Gameshark vs. Action Replay vs. CodeBreaker.
- Gameshark V3 / Action Replay: These are the most common. They usually come in pairs of 8-character blocks.
- CodeBreaker: These are shorter, usually 12 characters total. They are often more stable on mobile emulators.
- Raw/Memory Patches: These are for the tech-savvy. They edit the RAM directly.
Most people use the "Auto-Detect" feature in their emulator. If it doesn't work, manually switch the cheat type to "Gameshark V3" and try again.
Actionable Next Steps
If you're ready to start cheating, here is exactly how you should do it to keep your save file alive.
- Backup your save. Not just an in-game save, but a "Save State" in your emulator menu.
- Input the Master Code first. Enable it. Walk around for five seconds to make sure the game doesn't freeze.
- Add one cheat at a time. Don't try to get infinite money, rare candies, and walk through walls all at once.
- Get what you need, then turn it off. Once you have your 99 Master Balls, disable the code.
- Check your PC boxes. If you see anything glitchy or named "??????????", restart and try a different code version.
Cheating in Emerald is the best way to bypass the tedious parts of the game, especially if you're just looking to build a competitive team for the Battle Frontier. Just stay smart about it. One wrong line of hex code can turn your prized Blaziken into a pile of glitched pixels.