[Wii] Gintama Yorozuya Chuubu Help.

[TGE]

The files seem to be compressed in memory (which caused my script to break), I suppose you are out of luck getting the raw files.
Alternatively you can use NinjaRipper to rip the models with Dolphin.
For what it's worth I made a BMS script to extract the PAC files, maybe you can use it for model swapping and such.

http://puu.sh/d44jt.bms