(Android) Groove Coaster 2 - .PAK files

[beat573nation]

Hi!
I recently started to mess around with this game (mostly the backend server) and I was wondering if it was possible to extract those .pak files.
I do not see any magic for these pak files, but I can see using a hex editor the list of files inside that archive and even the contents of some files, such as PNG?

Could anyone take a look? I've attached a sample file found in the .obb file of the app.
I have other samples, but those are quite big (18mb, 66mb and 75mb): https://drive.google.com/open?id=1qnLdx ... triBN_glKu

Would definitely appreciate any help on unpacking those files, and maybe even repacking if possible?
Anyways, thanks for reading!

prestage.pak

[LokiReborn]

Hi!
I recently started to mess around with this game (mostly the backend server) and I was wondering if it was possible to extract those .pak files.
I do not see any magic for these pak files, but I can see using a hex editor the list of files inside that archive and even the contents of some files, such as PNG?

Could anyone take a look? I've attached a sample file found in the .obb file of the app.
I have other samples, but those are quite big (18mb, 66mb and 75mb): https://drive.google.com/open?id=1qnLdx ... triBN_glKu

Would definitely appreciate any help on unpacking those files, and maybe even repacking if possible?
Anyways, thanks for reading!

prestage.pak

It should be something very close to this, it works with the example file not sure if there are any variations in the others.

[LokiReborn]

Added the repack feature in too, let me know if there are any issues.

[beat573nation]

Added the repack feature in too, let me know if there are any issues.

I only tried the unpack feature for now, and it works wonders, even on the other files!
Will try the repack feature soon!

Thank you very much for your time!