Using a decrypted ROM on an emulator like Citra allows for higher resolution graphics (up to 4× native), custom textures, and better performance, creating a "HD remaster" experience for a game that was originally locked at 400×240 pixels. Features of Shin Megami Tensei IV
: Playing a decrypted SMT IV ROM on emulators often requires a powerful PC to maintain full speed at higher resolutions.
A ROM has had these security layers completely stripped away. Shin Megami Tensei IV -UNDUB- 3DS -Decrypted- ROM
– Shin Megami Tensei IV (SMT IV) launched for the Nintendo 3DS in 2013 (Japan) and 2014 (North America/Europe). The game’s official version contains a Japanese‑language voice track and a Western‑language text translation (the “dub” in the title refers to the English voice‑over that was never actually included on the cartridge; the term “undub” has become a community shorthand for the English‑only version that removes the unused Japanese voice data).
To play a decrypted or modified file on an actual Nintendo 3DS system, the console must be modified with custom firmware (CFW) like Luma3DS. Using a decrypted ROM on an emulator like
This path is for those who wish to play on a computer. It requires a decrypted ROM of the UNDUB-patched game:
Decrypted ROMs allow the emulator to read the game data directly without needing the system's private header keys. – Shin Megami Tensei IV (SMT IV) launched
: An "undub" replaces the English voice-over files with the original Japanese studio voice acting while leaving all English text, menus, and subtitles fully intact.
You play as Flynn, a "Samurai" from the Eastern Kingdom of Mikado, tasked with defending humanity from demons. The story features multiple branching paths based on alignment (Law, Chaos, Neutral).
While the official localized version featured a phenomenal English voice cast, many purists and fans of Japanese media long for the original voice tracks. This desire gave birth to the , a community-modified version of the game designed specifically for emulation and customized hardware. What is an "UNDUB" ROM?