The PSP game uses a format for the scenes that I haven't heard or seen before, and it compicates the results. It's ''.xxi''.
Here's a sample: https://mega.nz/#!1XB2UQ4T!phf93wKXy3QI0gi_g3aVo-3KEwiwjaDi73yFXJcyDcU.
I'll await some input, but I can also use Ninjaripper if all fails.