Ripping Levels/Stages From Certain PS3 Games?

[BraveDragonWolf]

I wanted to ask and find out about this a couple years back but I never got to do so. I know 3D character model ripping sounds easier than ripping stages. (As far as I know)

I want to know how difficult or if it's possible to rip levels/stages  from games like Hyperdimension Neptunia or any other PS3 game or the PC version of a specified game.