If you want to create this specific version, you generally have two options:
A ROM has had its digital rights management (DRM) and encryption layers stripped away. This specific formatting is essential for two main use cases: 1. Citra and Mandarine Emulation
You get the best of both worlds. You can fully understand the plot, UI, and mechanics via English text while enjoying the dramatic inflection and intended performances of the original Japanese voice cast. What Does "Decrypted" Mean for 3DS ROMs? Shin Megami Tensei IV -UNDUB- 3DS -Decrypted- ROM
Which of these would you like?
The desire for an UNDUB version is so strong that it created a demand for a modified ROM that could be played on both hacked 3DS consoles and PC emulators. If you want to create this specific version,
A significant bug was discovered in version 1.0: the audio for a specific, important cutscene—the Neutral Ending—was not correctly undubbed and remained in English. This prompted an update (version 1.1) that fixed this particular cutscene.
If you see a ROM labeled simply "UNDUB," it is likely the final, stable revision. You can fully understand the plot, UI, and
Usually encrypted to prevent piracy on original hardware.
If you want to explore further details about setting up your software, let me know:
Go to Emulation > Configure > Controls to map your keyboard or controller inputs.
Decryption allows the emulator to read the game data directly, making it vastly easier to inject fan translations, HD texture packs, or custom Undub audio files. Why Play Shin Megami Tensei IV in Undub Format?