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Patching Guide

This guide will walk you through patching a clean Pokémon Black 2 or White 2 ROM to create Redux.

Prerequisites

Important File Requirements

  • You need a clean Black 2 or White 2 ROM (American/European version)
  • ROM must be in .nds format (may be in .zip or .7z archive)
  • ROM should be 524,288 KB in size when extracted
  • Never use .exe files - these are not legitimate ROM files

Obtaining the Patch

Download the Redux patch from Drayano's Twitter, which links to his Google Drive.

Step 1: Obtain the Base ROM

  1. Obtain a clean Pokémon Black 2 or White 2 ROM
  2. Ideally from a dump of your personal cartridge
  3. Ensure the file is .nds format or contained in a .zip/.7z archive
  4. Extract the ROM if it's in an archive

Step 2: Choose a Patching Tool

Select the appropriate patching tool for your platform:

xdeltaUI (Recommended)

  • Included in the Redux download ZIP file
  • Simple graphical interface
  • Continue to Step 3 below

MultiPatch

  • Search online for MultiPatch tool
  • Similar functionality to xdeltaUI
  • Follow similar steps to Windows instructions

UniPatcher

  • Available on Google Play Store
  • Free and easy to use

ROM Patcher JS

Step 3: Apply the Patch (Windows - xdeltaUI)

Step-by-Step Instructions

3.1 - Select the Patch File

  1. Open xdeltaUI.exe
  2. Go to the Apply Patch tab
  3. Click Open next to the Patch: field
  4. Select your Redux .xdelta patch file
    • Should be .xdelta format (not .zip, .7z, or .exe)

3.2 - Select the Source ROM

  1. Click Open next to the Source File: field
  2. Select your clean .nds Black 2 or White 2 ROM
    • Must be extracted .nds file (524,288 KB)

3.3 - Choose Output Location

  1. Click ... next to the Output File: field
  2. Choose where to save the patched ROM
  3. Name it appropriately:
    • Pokémon Blaze Black 2 Redux.nds
    • Pokémon Volt White 2 Redux.nds
  4. Important: Include .nds extension in the filename
  5. Click Save

3.4 - Patch the ROM

  1. Click Patch to begin the process
  2. Wait for completion
  3. You now have a playable Redux ROM!

Step 4: Apply Optional Patches (Classic/EV-Less)

Optional Patch Types

  • Classic Version - Omits custom type combinations, abilities, and stat boosts
  • EV-Less Version - Modified difficulty scaling

To apply optional patches:

  1. Repeat Steps 3.1-3.4 with the following changes:
  2. Patch: Select the optional patch (Classic or EV-Less .xdelta)
  3. Source File: Select your already-patched Redux ROM from Step 3 - Use Pokémon Blaze Black 2 Redux.nds or Pokémon Volt White 2 Redux.nds

  4. Output File: Give it a new name (e.g., BB2 Redux Classic.nds)

  5. These optional patches are included in the download from Drayano's Google Drive

Step 5: Play the Game

Now you can play Redux using a DS emulator!

DeSmuME

  • Popular and stable
  • Performance Tips:
    • Turn OFF: Advanced Bus-Level Timing
    • Turn ON: Use Dynamic Recompiler
    • Found in: Emulation Settings → Emulator Options

MelonDS

  • Modern alternative
  • Generally faster than DeSmuME

DraStic (Paid)

  • Best performance and compatibility
  • Small one-time fee

Free Alternatives:

  • MelonDS for Android
  • Free DS emulator

iNDS

  • Free DS emulator for iOS devices

Hardware Options:

Troubleshooting

Common Issues

Patch fails to apply

  • Ensure ROM is exactly 524,288 KB
  • Verify ROM is clean (not pre-patched)
  • Check that you're not using the original BB2/VW2 ROM

Game won't load

  • Verify the output file has .nds extension
  • Check Hardware Information for compatibility
  • Some flashcards/hardware may not support Fairy Type implementation

White screen on launch

  • If using TWiLight Menu++, ensure you launch in DS mode

Ready to Play!

Once patching is complete, you're ready to start your Redux adventure! Check out the FAQ if you have any questions.