Emulation Any way for dump GBA ROMs from .app files on Wii U VC titles?

SaulFabre · Oct 20, 2021

Is there any way for extract/dump Game Boy Advance (GBA) ROM files from .app files from Wii U VC titles?

I'm trying to extract the ROM of the American Wii U VC release of the game "Kuru Kuru Kururin" which i got from Wii U USB Helper, but the files of the VC release are given me as unpacked (as .app files).

And i don't know how i can take (extract) the rom of these app files for get my own GBA rom dump of that game.

Any help?

Later i will send you a screenshot for see what is the files structure of my GBA VC game i got.

Greetings

Lostbhoy · Oct 20, 2021

Hi Saul

Does USB helper not give the option to unpack or pack? Sute I've done that in the past so you get the code, content and meta folders.

godreborn · Oct 20, 2021

Lostbhoy said:
Hi Saul

Does USB helper not give the option to unpack or pack? Sute I've done that in the past so you get the code, content and meta folders.

It does, yes.

godreborn · Oct 20, 2021

That's actually how I got the meta.xml for Brain Age.

The Real Jdbye · Oct 20, 2021

SaulFabre said:
Is there any way for extract/dump Game Boy Advance (GBA) ROM files from .app files from Wii U VC titles?

I'm trying to extract the ROM of the American Wii U VC release of the game "Kuru Kuru Kurunin" which i got from Wii U USB Helper, but the files of the VC release are given me as unpacked (as .app files).

And i don't know how i can take (extract) the rom of these app files for get my own GBA rom dump of that game.

Any help?

Later i will send you a screenshot for see what is the files structure of my GBA VC game i got.

Greetings

.app is not unpacked, what you want is Loadiine format which Wii U USB Helper lets you extract, that contains code/content/meta folders with all the individual files and the ROM should be somewhere in there.

matto21 · Oct 20, 2021

this is the content in the content folder

godreborn · Oct 20, 2021

you can decompress the alldata.bin file with MArchiveBatchTool-win-x64 iirc. for instructions, look in the gba brightness tutorial (should be on front page, since it's new). not sure if the rom will be what you want or not as I didn't look for the rom itself.

SaulFabre · Oct 20, 2021

matto21 said:
this is the content in the content folderView attachment 280721

i don't have that structure

i have this structure:

Lostbhoy said:
Hi Saul

Does USB helper not give the option to unpack or pack? Sute I've done that in the past so you get the code, content and meta folders.

godreborn said:
It does, yes.

How i can pack these files for make a single rpx or any other compatible file? I wanted to use wiiu-vc-extractor but it just works with rpx files

SaulFabre · Oct 20, 2021

matto21 said:
this is the content in the content folderView attachment 280721

hey @matto21 what tool are you using for get the rpx file and the folders code/content/meta of the VC games?

Because my Wii U USB Helper doesn't do so

godreborn · Oct 20, 2021

I'm not sure if usb helper can decrypt the game from that or not. the way I've done it is to have it decrypt the game after it's finished downloading. let me see if I can find the option.

SaulFabre · Oct 20, 2021

I managed to extract the contents of my Kuru Kuru Kururin GBA VC game for Wii U.
I have these:

On code, i've found the rpx file, and other required files.

Now, what's the next step?

matto21 · Oct 20, 2021

SaulFabre said:
i don't have that structure

i have this structure:

View attachment 280722

How i can pack these files for make a single rpx or any other compatible file? I wanted to use wiiu-vc-extractor but it just works with rpx files

rpx file is located in the code folder

godreborn · Oct 20, 2021

I managed to extract the alldata file:

and the file in the roms folder (whatever this is):

godreborn · Oct 20, 2021

haha, it works:

SaulFabre · Oct 20, 2021

matto21 said:
rpx file is located in the code folderView attachment 280730

Don't worry, i now have these, i managed to extract the contents of these strange app files i got and then i got the code/content/meta folders and i got the rpx and other required files.

And, now, i also managed to extract the GBA ROM of it. I used this tool https://github.com/wheatevo/wiiu-vc-extractor and extracted my file alldata.psb.m (with alldata.bin file) with that command-line tool and i finally got my ROM of the American Kuru Kuru Kururin.

I could have followed this tutorial https://gbatemp.net/threads/remove-the-dark-filter-from-wii-u-gba-vc-titles.601290/ but it's too long, so i decided to do this instead.

Then, opened the rom with VBA-M and it loaded great:

Thanks to everyone

godreborn · Oct 20, 2021

just rename it to .gba extension after decompressing the rom file with this command:

SaulFabre · Oct 20, 2021

godreborn said:
just rename it to .gba extension after decompressing the rom file with this command:

View attachment 280735

Thanks a lot for the help but i've already got it with another similar tool:

SaulFabre said:
Don't worry, i now have these, i managed to extract the contents of these strange app files i got and then i got the code/content/meta folders and i got the rpx and other required files.

And, now, i also managed to extract the GBA ROM of it. I used this tool https://github.com/wheatevo/wiiu-vc-extractor and extracted my file alldata.psb.m (with alldata.bin file) with that command-line tool and i finally got my ROM of the American Kuru Kuru Kurunin.

I could have followed this tutorial https://gbatemp.net/threads/remove-the-dark-filter-from-wii-u-gba-vc-titles.601290/ but it's too long, so i decided to do this instead.

Then, opened the rom with VBA-M and it loaded great:

View attachment 280734

Thanks to everyone

SaulFabre · Oct 20, 2021

Okay, for those that don't know how i got the rpx file and the code/content/meta folders from the .app files of a GBA Wii U VC title downloaded from Wii U USB Helper Launcher, i've done this:

In "Downloaded" section of "Library" tab, right click in the game you downloaded, then click in "Unpack (Cemu)" and with this i got the required folders code/content/meta and the rpx file.

Thanks a lot to everyone!!!

godreborn · Oct 20, 2021

thanks. I wasn't aware of that option. the other unpack thing when you download is in that box with the download speeds. think it's under the hibernate option.

SaulFabre · Oct 20, 2021

Got a few more GBA VC games of Wii U and all of them extracted successfully.

Also done with NES, FDS, and SNES.

Well, time to hunt and catch some more Wii U VC releases and check its rom files...

Emulation Any way for dump GBA ROMs from .app files on Wii U VC titles?

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I like Yoshis and the Wii/Wii U scene.

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I like Yoshis and the Wii/Wii U scene.

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