Help solving Inazuma Eleven Victory Road's CPK cypher

[geringaWalker212]

I'm trying to extract the contents of this CPK file using old methods* that worked in older versions of the game, but it seems Level-5 introduced new forms of encryption.

Any help would be useful.

(* Said methods use the logic of this repository: https://github.com/SuperTavor/Viola; https://github.com/SuperTavor/Viola/blob/main/Viola.Core/Dump/Logic/CDump.cs)

 

example_cpk.zip

Edited Monday at 11:21 PM by geringaWalker212
added more example files for comparison