The VG Resource

So i made a post earlier this week about The Munchables, but i realized it probably wasnt informative enough to get any help. So ive heard that Namco for some reason uses their own file compression methods across most if not all of their games, and for the life of me i cannot extract anything from these. I'm sending the .dat files in a google drive link, in case anyone wants to help me figure this out. I have very little experience with ripping of any kind, so im not sure what to do with them. All methods/programs ive found havent done anything to help, so i dont know what to do.
https://drive.google.com/drive/folders/1...sp=sharing