Help extracting the .asset files from VOEZ

[PJH]

I thought they're encrypted, but no idea what to do, so ask you guys for help. If there's some tools please tell me how to use them, big thanks!
Files are here: https://drive.google.com/open?id=0B-2wcTLaYY4_ajBadk1JclI1N00
P.S.: The 5-.gameplay.asset files I guess are music files or something.

[PJH]

Whether you can extract/decrypt those files or not, please tell me the result then, thanks!
Also I hope that admin aluigi would notice this article, I need a really big help.

[PJH]

I know some of you have read this article, then why you wouldn't come and help me a bit?
I'm here to ask you guys FOR HELP, please at least give me a method or tell me what tool I can use to decrypt them.
Your response will make me feel better, I hope you will lend me a hand and I will really appreciate you!

[aluigi]

Apparently all the files are encrypted so no way to easily extract something without spending time on the game.