Quote Originally Posted by ShivaBlizzard8 View Post
On a similar note, Ulty needs some specific motivation - why go through all the time compression nonesense? Why not just blow up the planet? What exactly is she trying to accomplish?
This is explained in the game. If you Scan her final form, you will read "Ultimecia, transformed to absorb all time and space. Absorbing all existence as we speak." Ultimecia wanted to absorb existence and become God. Simple as that.