Quote Originally Posted by Goldenboko View Post
Using your logic if it isn't stated directly in game, its a theory.
No. Read my post again:

Quote Originally Posted by The Crystal
Maybe he tried to use the Crystal to survive. But normaly, in fiction, if something is not showed, not mentioned, or not hinted, during the story... Is because it never happened. Unless there is a confirmation outside of the story(official book, or interview with creators) that confirms it happened.
See the part in bold? It's hinted in the game that the Crystal could give life(and much more than that), because it's the source of life and everything else in FFIX's universe. It's friggin GOD.

Now, where it's hinted in the game that Kuja tried to use it's power to survive? Nowhere.