One Piece Grand Adventure (PS2) (USA) .apf

[cheeselake0]

 

Is it possible to extract the game's files? such as Characters, stages, etc.
The character files and stages are inside the game's OGA.apf file, However i can't get to them.
The game seems to use some kind of FSM for the files within the .apf and the game's setup.dat.

.apf file https://drive.google.com/file/d/16Q1NcDW6FXQkjWmuD-5bjdnlkjr_HQ-N/view?usp=sharing

setup .dat file https://drive.google.com/file/d/1tN8L5-uXMS6vGWscmE9x5WiB6yH9LGqA/view?usp=sharing

edit : the game also might be using zlib  compression on some of it's files?

edit2 : the game  might be using FST(s) alongside the FSM(s)?

within the .apf  stage, character, estoric folders should be found, and inside these folders many .pac files should be found

Edited September 22 by cheeselake0
more information about the apf file