Quote Originally Posted by Mo-Nercy View Post
Maybe a 'No Paradigm Shift' game is more doable. Just play in the paradigm that you get defaulted with whenever the game gives you a party or after you switch members.
This seems possible, however a No Crystarium challenge cannot be possible. I doubt you could defeat many of the Eidolons, let alone the fact that in chapter 12 (SPOILER)you need to be be able to beat one of those large turtles, which would stop on the ground once and instantly kill you.

In a game like this, the numbers don't add up for this to be possible.