You've probably been there. Standing in the tall grass outside Eterna City, praying for a 1% encounter, or maybe you're just sick of grinding your Gible against wild Graveler for six hours straight. Honestly, Pokemon Platinum is a masterpiece, but it’s a grindy masterpiece.
Action Replay was always the "forbidden fruit" of the DS era. Today, whether you’re dusting off an old DS Lite or firing up an emulator, using Pokemon Platinum all action replay codes is still the fastest way to bypass the boring stuff and get straight to the Sinnoh League. But if you just copy-paste everything you see on a 15-year-old forum, you’re gonna end up with a "Bad Egg" or a crashed save file.
Let's break down the codes that actually hold up without breaking your game.
The Essentials: Movement and Quality of Life
Nothing kills the vibe of a replay like slow walking. Or worse, having to swap a party member just to use Cut on a single bush. These codes aren't technically "cheating" the difficulty; they’re just saving your sanity.
Walk Through Walls (R + B to Activate, L + B to Deactivate)
This is the holy grail. It lets you skip those annoying ledge jumps or bypass the cave puzzles that everyone hates. Just be careful not to walk into the "void" for too long, or you might get stuck in a black screen.94000130 FCFD020012060C20 00000200D2000000 0000000094000130 FCFD010012060C20 00001C20D2000000 00000000
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Fast Running (Always On)
You’ll basically move at the speed of the Bicycle even when you're just walking. It makes the trek through Route 210 feel like a breeze instead of a marathon.120EEB78 00005469120EEB84 00005455120EEB90 00005441
Bag Hacks: Infinite Items and Rare Candies
Grinding for levels is fine when you're ten years old and have all summer. As an adult? Not so much. Most people looking for Pokemon Platinum all action replay codes are really just looking for a shortcut to Level 100.
Kinda annoying thing about Platinum: there isn't a single "stand-alone" Rare Candy code that works for everyone. Usually, you have to use the "All Medicine" hack. This will give you 900 of every medicine item, including Rare Candies.
900x All Medicine (Select + Up)94000130 FFBB000062101140 00000000B2101140 00000000D5000000 03840011C0000000 00000025D6000000 00000B60D4000000 00000001D2000000 00000000
Infinite Master Balls (L + R)
Don't waste these on a Bidoof. Use the code, check your bag, and you'll see 999 of the best ball in the game.94000130 FCFF0000B2101D40 00000000E0000D00 0000003C03E30001 03E30002D2000000 00000000
Wild Pokemon Modifiers and Shiny Luck
This is where things get a bit complicated. If you want a specific Pokemon to appear, you usually have to use the "Calculator" method. It sounds like a math homework assignment, but it's actually clever.
Basically, you open your Poketch Calculator, type in the National Pokedex number of the Pokemon you want (like 448 for Lucario), and then walk into the grass while holding a specific trigger button.
Encounter Shiny Pokemon
This code is legendary. It forces the game’s RNG to roll a Shiny every time.
To activate: Go to your Trainer Card, hold R, and press A.
To deactivate: Go to your Trainer Card, hold L, and press A.02071d78 47104a0002071d7c 0200003194000130 fcfe02000207406c 4708490002074070 0200000102073e3c 4708490002073e40 0200005112073e30 000046c0d2000000 00000000
Why Some Codes Fail (And How to Fix It)
If you're using an emulator like DeSmuME or a flashcart like the R4, you might find that some codes just... don't do anything. Most of the time, it's because of the Game ID.
Pokemon Platinum has different versions based on where it was bought (USA, Europe, Japan). Most of the codes you find online are for the USA version (ID: CPUE-01). If you have the European version (CPUP), these codes will likely crash your game or simply refuse to load.
Always check your ROM info before you start entering long strings of hex. Another pro-tip: don't have too many codes active at once. The DS has very little RAM, and trying to "Walk Through Walls" while "Running Fast" with "Infinite Items" and "100% Shiny Rate" is a one-way ticket to a frozen screen.
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Safety First: The "Golden Rule" of Cheating
Before you touch any of these Pokemon Platinum all action replay codes, save your game. Then save it again. If you're on an emulator, use a Save State.
The "Catch Other Trainer's Pokemon" code is notorious for creating "Bad Eggs." These are corrupted data slots in your PC that can actually spread and ruin your entire save file. If you see an egg with a weird name or a broken sprite, don't touch it. Just revert to your backup.
Making the Most of Sinnoh
Action Replay isn't just about making the game easy; it's about experiencing the stuff Nintendo locked away years ago. Using codes to get the Azure Flute or the Oak's Letter is the only way to catch Arceus or Shaymin legitimately in 2026 since the Mystery Gift events are long dead.
If you're ready to start your modded journey, pick one code at a time. Start with the "Max Cash" or "Infinite Items" to get your feet wet. Once you're comfortable, try the Wild Pokemon Modifiers to build that dream team you never could as a kid.
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To get started, open your emulator's "Cheats" menu or insert your Action Replay cartridge, input the Master Code first (if required by your device), and then add your chosen cheats. Keep a backup of your save file on your desktop—you'll thank yourself later if a code goes sideways.