ROM Hack Tutorial  Updated

How to find the seed (like a password) needed to extract alldata.bin and alldata.psb.m, which contain retro game rom data

sorry for my poor english

Tutorials in Japanese
https://yyoossk.blogspot.com/2023/03/romalldatabinalldatapsbm.html

Download & unzip hactool from the following link
https://github.com/SciresM/hactool/releases

Extract the main file from Section 0 in the Program nca file with NxFileViewer
https://github.com/Myster-Tee/NxFileViewer/releases

https://github.com/Myster-Tee/NxFileViewer/releases

cmd
hactool.exe --uncompressed=main_uncompressed -t nso0 main

If you open the main_uncompressed file in the Hex Workshop Hex Editor, you can see the contents in a composite form.
http://www.bpsoft.com/downloads/


Click on the binocular-like icon at the top


Change Type to Text String, type 【RightAnalogStick】 in Value, and click OK.
or type 【25G/】 in Value, and click OK.
This means to search for RightAnalogStick in the text (characters).
This is because the seed for the other game I referred to was found around the RightAnalogStick text.
Depending on the games that will be released in the future, it may not be in that vicinity.


In the example image, you can see the string 25G/xpvTbsb+6 just above it
This is the seed needed to expand alldata.bin and alldata.psb.m

Extract the alldata.bin and alldata.psb.m files from Section 1 in the Program nca file with NxFileViewer

Download & install .NET Core from the following link
https://dotnet.microsoft.com/download

Download & unzip MArchiveBatchTool from the following link
https://github.com/farmerbb/RED-Project/releases

Copy the two files "alldata.bin" and "alldata.psb.m" into the MArchiveBatchTool folder.

cmd
MArchiveBatchTool.exe fullunpack --keep alldata.psb.m 【zlib】 【seed】 64

zlib is a compressed format, and I think it's usually zlib, but it could be different for some games.
For example, for the Mega Drive Mini, it was zstd.

Example
MArchiveBatchTool.exe fullunpack --keep alldata.psb.m zlib 25G/xpvTbsb+6 64

It will be extracted in the alldata.psb.m_extracted folder

Most of them are
alldata.psb.m_extracted/system/roms
folder, which contains the rom files for retro games and sometimes bios files
 
Last edited by yyoossk,
  • Like
  • Love
Reactions: linuxares, impeeza, cearp and 4 others
Click to expand...

Site & Scene News

Go to forum More news

Popular threads in this forum

Hacking Misc  Getting the MIG Switch to load an XCI dump without its original Initial Data

DBI language error

Emulation Homebrew  duckstation for Switch

Can you trade in a banned switch for an unbanned one?

Why is Atmosphere so dominant?

Last switch firmware blocking MIG SWITCH?

Crosscode Hacking thread

Hacking  Loader.kip for AMS 1.7.0 with FW 17.0.1 - sys-clk error ??

General chit-chat
Help Users
  • BakerMan @ BakerMan:
    i said i was sleeping...
  • BakerMan @ BakerMan:
    sleeping with uremum
  • K3Nv2 @ K3Nv2:
    Even my mum slept on that uremum
  • TwoSpikedHands @ TwoSpikedHands:
    yall im torn... ive been hacking away at tales of phantasia GBA (the USA version) and have so many documents of reverse engineering i've done
  • TwoSpikedHands @ TwoSpikedHands:
    I just found out that the EU version is better in literally every way, better sound quality, better lighting, and there's even a patch someone made to make the text look nicer
  • TwoSpikedHands @ TwoSpikedHands:
    Do I restart now using what i've learned on the EU version since it's a better overall experience? or do I continue with the US version since that is what ive been using, and if someone decides to play my hack, it would most likely be that version?
  • Sicklyboy @ Sicklyboy:
    @TwoSpikedHands, I'll preface this with the fact that I know nothing about the game, but, I think it depends on what your goals are. Are you trying to make a definitive version of the game? You may want to refocus your efforts on the EU version then. Or, are you trying to make a better US version? In which case, the only way to make a better US version is to keep on plugging away at that one ;)
  • Sicklyboy @ Sicklyboy:
    I'm not familiar with the technicalities of the differences between the two versions, but I'm wondering if at least some of those differences are things that you could port over to the US version in your patch without having to include copyrighted assets from the EU version
  • TwoSpikedHands @ TwoSpikedHands:
    @Sicklyboy I am wanting to fully change the game and bend it to my will lol. I would like to eventually have the ability to add more characters, enemies, even have a completely different story if i wanted. I already have the ability to change the tilemaps in the US version, so I can basically make my own map and warp to it in game - so I'm pretty far into it!
  • TwoSpikedHands @ TwoSpikedHands:
    I really would like to make a hack that I would enjoy playing, and maybe other people would too. swapping to the EU version would also mean my US friends could not legally play it
  • TwoSpikedHands @ TwoSpikedHands:
    I am definitely considering porting over some of the EU features without using the actual ROM itself, tbh that would probably be the best way to go about it... but i'm sad that the voice acting is so.... not good on the US version. May not be a way around that though
  • TwoSpikedHands @ TwoSpikedHands:
    I appreciate the insight!
  • The Real Jdbye @ The Real Jdbye:
    @TwoSpikedHands just switch, all the knowledge you learned still applies and most of the code and assets should be the same anyway
  • The Real Jdbye @ The Real Jdbye:
    and realistically they wouldn't

    be able to play it legally anyway since they need a ROM and they probably don't have the means to dump it themselves
  • The Real Jdbye @ The Real Jdbye:
    why the shit does the shitbox randomly insert newlines in my messages
  • Veho @ Veho:
    It does that when I edit a post.
  • Veho @ Veho:
    It inserts a newline in a random spot.
  • The Real Jdbye @ The Real Jdbye:
    never had that i don't think
  • Karma177 @ Karma177:
    do y'all think having an sd card that has a write speed of 700kb/s is a bad idea?
    trying to restore emunand rn but it's taking ages... (also when I finished the first time hekate decided to delete all my fucking files :wacko:)
  • The Real Jdbye @ The Real Jdbye:
    @Karma177 that sd card is 100% faulty so yes, its a bad idea
  • The Real Jdbye @ The Real Jdbye:
    even the slowest non-sdhc sd cards are a few MB/s
  • Psionic Roshambo @ Psionic Roshambo:
    https://www.youtube.com/watch?v=SjCivnt5t50
  • Karma177 @ Karma177:
    @The Real Jdbye it hasn't given me any error trying to write things on it so I don't really think it's faulty (pasted 40/50gb+ folders and no write errors)
  • DinohScene @ DinohScene:
    run h2testw on it
  • DinohScene @ DinohScene:
    when SD cards/microSD write speeds drop below a meg a sec, they're usually on the verge of dying
    DinohScene @ DinohScene: when SD cards/microSD write speeds drop below a meg a sec, they're usually on the verge of dying