Pokemon Black 2 remains one of the most content-rich entries in the entire franchise, offering a massive Pokedex and a challenging difficulty curve. However, for many returning players or those looking to complete their National Dex in the modern era, the sheer amount of grinding required can be overwhelming. Action Replay (AR) codes provide a solution, allowing you to bypass tedious mechanics, obtain rare items, and encounter elusive Pokemon like the legendary Gen 1-4 starters or event-exclusive Mythicals.

To get the most out of your journey through the Unova region, using these codes correctly is essential. This guide provides a verified list of Pokemon Black 2 cheats, ranging from basic item modifiers to advanced game-breaking mechanics, along with technical instructions for both emulators and original hardware.

Quick Start: The Most Essential Codes for Black 2

If you are looking for immediate advantages without deep-diving into complex hex-editing, these three codes are the industry standard for any cheated playthrough. These are verified for the North American (NA/US) version of Pokemon Black 2 (Game ID: IREO).

Max Money (9,999,999 PokeDollars)

Stop worrying about the cost of Potions and Ultra Balls. This code sets your wallet to the maximum limit.

  • Activation: Press SELECT
  • Code: 94000130 FFFB0000 022266E4 0098967F D2000000 00000000

900x Master Balls (Slot 1)

Never fail a capture again. This replaces the first item in your Poke Ball pocket with 900 Master Balls.

  • Activation: Press L + R
  • Code: 94000130 FCFF0000 B2000024 00000000 E0000D20 00000008 03E70001 00000000 D2000000 00000000

999x Rare Candies (Medicine Pocket)

Instantly level up any Pokemon to Level 100 to test new team compositions or move-sets.

  • Activation: Press SELECT
  • Code: 94000130 FFFB0000 B2000024 00000000 E0000B20 00000008 03E70032 00000000 D2000000 00000000

Critical Safety Measures Before Using Cheats

Using Action Replay codes interacts directly with the RAM of your Nintendo DS or the memory addresses allocated by your emulator. While most codes are safe, there is always a non-zero risk of data corruption.

1. Always Backup Your Save File

If you are playing on an emulator like DeSmuME or DraStic, go to your "Battery" or "Save" folder and copy the .sav file to a different location. On physical cartridges, if you use a tool like Checkpoint on a modded 3DS, back up the save data before inserting the AR device.

2. Avoid Overlapping Complex Codes

Activating "Walk Through Walls" and a "Wild Pokemon Modifier" simultaneously can often lead to the game freezing when the engine tries to calculate a collision and a random encounter at the same time. Enable one complex cheat at a time.

3. Save Before Activation

Never activate a cheat while in the middle of a crucial event, such as a Gym Leader battle or a scripted cutscene. The best practice is to stand in a quiet area (like inside a Poke Mart), save your game, activate the cheat, test it, and then save again once you confirm the game is stable.

Comprehensive List of Item and Currency Modifiers

In Pokemon Black 2, inventory management is half the battle. These codes ensure you never run out of the resources needed for high-level play.

Unlock All TMs and HMs

Obtaining every Technical Machine (TM) normally requires hours of searching and participating in the Pokestar Studios or Battle Subway. This code adds every TM and HM to your bag instantly.

  • Activation: Press L + R
  • Code: 94000130 FCFF0000 B2000024 00000000 E0000BC0 0000013C 0001005F 00010060 00010061 00010062 (Note: This is a long string; ensure your emulator supports multi-line input.)

Infinite P.P. (Move Stamina)

Your Pokemon will never run out of Move PP, allowing you to use high-power moves like Fire Blast or Hydro Pump indefinitely during long routes or the Elite Four run.

  • Code: 921BAE18 0000D301 121BAE18 0000E003 D2000000 00000000

Complete All Gym Badges

If you wish to access the endgame areas or use HMs like Fly and Surf immediately, this code unlocks all eight badges on your trainer card.

  • Warning: This may mess up the game's internal flag system for story progress. Use only for exploration purposes.
  • Code: 94000130 FFFB0000 222266E8 000000FF D2000000 00000000

Battle and Experience Modifiers

Grinding for levels is perhaps the most time-consuming part of Gen 5. These codes allow you to scale your team's power at your own pace.

100x Experience Multiplier

Every time you defeat a wild Pokemon or a trainer's Pokemon, the experience gained is multiplied by 100. A single Patrat battle can take a Level 1 Pokemon to Level 30.

  • Code: 0224E5D8 00000064 0224E5DC 00000064 D2000000 00000000

100% Catch Rate (Any Ball)

This makes every Poke Ball thrown have the same success rate as a Master Ball. You can catch Kyurem or Zekrom with a standard red Poke Ball on the first turn.

  • Code: 521AF850 7820D203 121AF850 000046C0 D2000000 00000000

Instant Kill (Enemy HP to 1)

Useful for catching legendaries without accidentally knocking them out, or for clearing difficult battles quickly.

  • Activation: Press SELECT + UP
  • Code: 94000130 FFBB0000 B2256E10 00000000 10000010 00000001 D2000000 00000000

Wild Pokemon Modifier: How to Encounter Any Species

The "Wild Pokemon Modifier" is the most popular Action Replay code. It works by overwriting the encounter table of the current area with the Pokemon of your choice.

The Base Code

To use this, you must input the base code and then replace the "AAA" placeholder with the Hexadecimal ID of the Pokemon you want.

  • Activation: Hold SELECT while walking in tall grass.
  • Base Code: 94000130 FFFB0000 B2000024 00000000 C0000000 0000002F 10036B04 00000AAA DC000000 00000004 D2000000 00000000

Common Pokemon Hex IDs (Replace AAA)

  • Bulbasaur: 001
  • Mewtwo: 096
  • Mew: 097
  • Rayquaza: 180
  • Arceus: 1ED
  • Genesect: 289
  • Keldeo: 287

Shiny Pokemon Modifier

This code forces the game to generate a "Shiny" personality value for any wild encounter.

  • Note: Pokemon obtained this way will often have randomized IVs but will always have the shiny coloration and animation.
  • Code: 5201C534 43405D52 1201C538 00002000 D2000000 00000000

World Exploration and Quality of Life Codes

Unova is a vast region with many blocked paths. These codes help you navigate the world with greater freedom.

Walk Through Walls (Ghost Mode)

Skip the tedious ledge-hopping and cave puzzles. This allows you to pass through any solid object.

  • Activation: Hold L while moving.
  • Warning: Walking out of the map boundaries can cause the game to crash or soft-lock your character in a "void." Always have a Pokemon with "Fly" in your party to escape.
  • Code: 5219C8D0 FDD8F7C1 1219C8D4 00001C04 94000130 FDFF0000 1219C8D4 00002400 D2000000 00000000

Change In-Game Season

Certain areas in Black 2, like Twist Mountain, change their layout based on the season. This code lets you cycle through them instantly.

  • Activation: SELECT + Directional Pad
    • Up: Spring
    • Right: Summer
    • Down: Autumn
    • Left: Winter
  • Code: 94000130 FFBB0000 B2000024 00000000 20036834 0000000X (Replace X with 0-3) D2000000 00000000

How to Input Codes on Different Platforms

Using Action Replay on DeSmuME (PC)

  1. Open your Pokemon Black 2 ROM.
  2. Go to the Tools menu and select Cheats > List.
  3. Click on Action Replay.
  4. Paste the code and give it a description (e.g., "Max Money").
  5. Click Add and ensure the checkbox next to the code is checked.
  6. Press the activation buttons (like SELECT) in-game.

Using Action Replay on DraStic (Android)

  1. Launch the game.
  2. Tap the Menu button (arrow at the bottom).
  3. Select the Cheat icon.
  4. DraStic often comes with a pre-loaded database. If your code isn't there, tap Custom Cheat to add your own.
  5. Enable the cheat and return to the game.

Using Physical Action Replay Hardware (DS/3DS)

  1. Insert your Pokemon Black 2 cartridge into the Action Replay device.
  2. Insert the AR device into your console.
  3. Boot the AR software and select "Add New Game" or find "Pokemon Black 2" in the list.
  4. Manually type the hex codes using the on-screen keyboard.
  5. Save and start the game through the AR menu.

Troubleshooting: Why Aren't My Codes Working?

If you've entered a code but nothing happens, check the following common issues:

  1. Region Mismatch: The codes provided here are for the North American (IREO) version. If you have a European (IRER) or Japanese (IREJ) ROM, these hex addresses will point to the wrong memory locations, causing crashes.
  2. Activation Buttons: Many codes require you to hold SELECT, L+R, or a D-Pad combination. The cheat will not work simply by enabling it in the menu; you must trigger the logic in-game.
  3. Master Code Requirement: Some older AR devices require a "Master Code" (also known as an (M) code) to be active before any other cheats can function. For Black 2, this is usually:
    • 00000000 4952454F
    • 00000000 00000000
  4. Save Corruption: If the game shows a "Blue Screen of Death" (the communication error screen), it means a code has corrupted the RAM. Restart the game and disable the most recently added cheat.

Frequently Asked Questions (FAQ)

Can I get banned for using cheats in Pokemon Black 2?

Since the official Nintendo Wi-Fi Connection for DS games was shut down years ago, there is no risk of being banned from official servers. However, if you plan to transfer these Pokemon to modern games via Pokemon Bank and Pokemon Home, "illegal" Pokemon (those with impossible moves or abilities) may be flagged and blocked from transfer.

How do I hatch eggs instantly?

There is a specific AR code that reduces the egg cycle count to zero. Once enabled, taking just one step will hatch any egg in your party. This is highly recommended for breeders.

Why does my game freeze when I walk through walls?

The game engine is not designed to load assets outside of the defined "walkable" zones. If you walk too far into the black void, the game cannot find the textures or scripts it needs and will hang. Always stay close to the map boundaries.

Is Challenge Mode unlockable with cheats?

Yes. In the vanilla game, Challenge Mode is version-exclusive to Black 2 and requires "Key Communication." An Action Replay code can manually toggle the "Challenge Mode" flag in your save file, allowing you to play the entire game at a higher difficulty from the start.

Summary of Responsible Cheating

Action Replay codes are a powerful tool to enhance your experience in Pokemon Black 2, whether you are looking to skip the grind or explore hidden parts of the Unova region. By following safety protocols—specifically backing up your saves and testing codes individually—you can enjoy the benefits of these cheats without the fear of losing your progress. Remember to always use the correct region-specific codes and avoid using modified Pokemon in trades with players who prefer a "pure" gameplay experience. With these codes in your arsenal, the Unova region is yours to command.