Ripping sprites from screenshot didnt work out so well...

[Ploaj]

This RAR contains a tool called pgdecrypt. Running this on the file ("pgdecrypt DATA.BIN" in the command-line) seems to successfully decrypt it.

At that point I'm having issues and right now I don't have the time nor head for trying to figure it out.

It doesn't seem to work for me. It just says invalid pgd file.

I think there is a psp emulator that can export the decrypted files, so that might work. I'll see if I can find it.