Platform: Nintendo 3DS Patch Developer: The Dedicated Translation Community Original Developer: Bandai Namco Entertainment
For years, the Nintendo 3DS was a fortress for mecha fans. While the system hosted titles like Super Robot Wars UX and Moon Dwellers, the final original entry, Super Robot Wars BX, remained a fortress without a key for English speakers—until the translation patch dropped. Having spent considerable time piloting through the translated version, I can confirm that this patch is not just functional; it is the definitive way to experience one of the best handheld SRW titles.
Super Robot Wars BX is a 2015 tactical role-playing game (SRPG) developed by Bandai Namco Entertainment for the Nintendo 3DS. It was released exclusively in Japan. As of this report, no complete, publicly released English fan translation patch exists for the game. While there have been multiple announced projects and partial efforts over the years, none have reached a playable, fully translated state available to the general public. The primary reason is the game’s complex, heavily compressed file structure and the sheer volume of text (including dialogue, battle quotes, menus, and original series scripts).
Super Robot Wars BX (SRW BX) is one of the more recent entries in the long-running tactical RPG series, notable for its large crossover roster of mecha from anime and original SRW teams, its robust tactical systems, and a storyline tied to the series’ modern continuity. Because the game was released only in Japanese, English-speaking fans have sought translations to enjoy its content. This post examines the BX English patch: what it is, how it came about, what it covers, technical considerations, legal/ethical context, installation and play tips, and why it matters to the fan community. super robot wars bx english patch
To apply the patch, you will need:
.xdelta or .bps patch plus patching tool).Typical steps (real 3DS):
000400000015A500 folder into /luma/titles/ on your SD card.For Citra:
Use Citra’s “Install CIA” or “Load File” with the patched ROM, or apply the patch to a decrypted .3ds file via a patching tool like DeltaPatcher. Title: A Grand Send-Off for the 3DS —
SRWBX-Eng).bx_eng_v0.3.zip or similar.000400000018E500 (the Title ID for SRW BX). Copy this folder to sd:/luma/titles/ on your 3DS SD card.Note for Emulators (Citra): The patch also works on the Citra 3DS emulator. You can right-click the game in Citra, select "Open Mods Location," and paste the patch folder there.
The BX English Patch is the life's work of a dedicated team of fan translators, primarily organized under Kingdom Blaze and various independent contributors on GBAtemp and Reddit.
Unlike machine-translated patches that plague other emulation scenes, the BX patch was done by hand by human beings who love mecha anime. The lead translator reportedly spent over two years decoding the 3DS’s proprietary file formats, extracting the scripts, and manually translating nearly 500,000 characters of Japanese text. Font kerning: Some longer English words (e
Key team goals included:
Let’s be frank: Fan translations exist in a legal grey area. Nintendo and Bandai Namco have historically taken down fan patches that distribute full ROMs.
The rule of thumb: Do not ask for ROMs. Do not share pre-patched CIAs publicly. The patch itself (a .xdelta or .ips file) is legally defensible because it contains zero copyrighted code—only changes. Applying it to your own, legally dumped cartridge is a form of fair use for preservation.
However, given that Bandai Namco has never released BX officially, and it is a dead platform title (the 3DS eShop is closed), the risk of legal action against individual users is virtually zero. The morality is for you to decide.