Sonic 4: Episode 2 (Android) *.OBB

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
LolHacksRule
Posts: 865
Joined: Fri Apr 20, 2018 12:41 am

Sonic 4: Episode 2 (Android) *.OBB

Post by LolHacksRule »

Ok so, the OBB is zlib compressed upon experimentation, it has a header of LPK and filenames too! They are also mentioned in the smali code but I don't have it rn.
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LolHacksRule
Posts: 865
Joined: Fri Apr 20, 2018 12:41 am

Re: Sonic 4: Episode 2 (Android) *.OBB

Post by LolHacksRule »

https://we.tl/t-L2VM6LRD0e
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aluigi
Site Admin
Posts: 12984
Joined: Wed Jul 30, 2014 9:32 pm

Re: Sonic 4: Episode 2 (Android) *.OBB

Post by aluigi »

"Transfer deleted", did you solve it?
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LolHacksRule
Posts: 865
Joined: Fri Apr 20, 2018 12:41 am

Re: Sonic 4: Episode 2 (Android) *.OBB

Post by LolHacksRule »

Err my PCs a little buffed so I'll reup later
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Argg
Posts: 6
Joined: Sat Mar 28, 2020 6:00 pm

Re: Sonic 4: Episode 2 (Android) *.OBB

Post by Argg »

I don't think the LPK is for compression, its just an archive file. Some of the files in the archive look odd (namely the model files) but I don't think that's due to compression. There are some files with compression in the archive (with a !ZIP header):
https://cdn.discordapp.com/attachments/ ... UBBLE2.DDS
https://cdn.discordapp.com/attachments/ ... _01_IT.DDS
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