Partial Telefang disassembly and English translation (on the patch branch)
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Latest commit 2c969e4 Dec 15, 2018

Keitai Denjuu Telefang (携帯電獣テレファング)

This is a partial disassembly of Keitai Denjuu Telefang, a wonderful RPG and creature collection game for the Game Boy Color.

Fan Translation

The English fan translation can be found here, on the patch branch of this repository!

Who are we?

We're Tulunk Village, the internet's first, probably only, and definitely coolest Telefang community! We can be found at, from where you can find all sorts of Telefang resources.

Like Telefang? Wanna talk to the programmers and translators? Just want to talk with some like-minded people? We run a Discord for everything Telefang, and we'd be happy to see you there!


If you find any problems with the disassembly, or there's something you'd like changed or added, you can open an issue here on GitHub about it (or even fix it yourself and open a pull request, if you're feeling up to it).

Technical stuff

ROMs built

This disassembly builds the following ROMs:

  • Keitai Denjuu Telefang: Power Version (telefang_pw.gbc, MD5 04f7ea139fef2bc2e3f70b2c23933d2e)
  • Keitai Denjuu Telefang: Speed Version (telefang_sp.gbc, MD5 ebfe05828463cc004898e6a95ee57fea)

How to build

This project uses a bunch of Linux tools to build, so if you're on Windows, you'll first of all have to install and use the Windows Subsystem for Linux.

To build the finished ROMs, three base ROMs are required: baserom_pw.gbc (Power Version), baserom_sp.gbc (Speed Version), and baserom_patch.gbc. The latter is the latest version of the patch, which you can get by copying either a Power or Speed ROM and patching it with the latest IPS. Eventually, baserom_patch won't be required... but for the moment, that's the way this imperfect world works.

After placing them in the top-level directory, you can check their hashes to make sure you've got the right files:

$ md5sum baserom_pw.gbc baserom_sp.gbc
04f7ea139fef2bc2e3f70b2c23933d2e  baserom_pw.gbc
ebfe05828463cc004898e6a95ee57fea  baserom_sp.gbc

If your Power Version base ROM has an MD5 hash of 8b0a1b6667040a52f6957c0eeea1dbd7, it's a known bad dump. In that case, replace it with a correct dump from a legitimate Keitai Denjuu Telefang Power Version cartridge.

The following needs to be installed in order to build:

  • Python (on Linux or Windows with the Linux subsystem, it'll most likely already be installed)
  • RGBDS version 0.3.6 (follow the instructions in the readme on the GitHub page to install)

Once that's all in order, just run make (or make -j4 if you don't have all day), and the finished ROMs will be built.