I feel like learning to extract and go through the files of a game is fascinating. It could have something normal not seen in-game or something unused leftover.

I've already kinda started with Epic Mickey Rebrushed's demo. (As you can see by my latest post before this one.) Yes, those are the models from EM: Rebrushed! Straight from the game! I first saw PleasanrGr8ient's video on him looking through the files and wanted to try it myself!