What the hell is a perfect game?

I was thinking about challenges for this game a little while ago. Low level came to mind, obviously.

Reks to 99 isn't a challenge, it's just a waste of time. Anyone can do it.

Solo runs (Vaan or etc. only) also came to mind instantly.

I'll probably start a low-level challenge soon, but I'm thinking about maybe a no License Grid challenge. But I guess you wouldn't get any LP if you weren't killing enemies in a Low-Level challenge, so Low-Level sort of implies no LG.

Maybe I'll do a Low-Level, and No Gambits for added annoyance challenge. :P

EDIT: Low-Level + Acquire all Espers? !~