Aren't there certain battles that require you to have certain spells in order to get through?
EDIT: Ohhhh, I see how it's done after looking at YouTube. Looks like there are videos for as far as (SPOILER)Cid.
Bow before the mighty Javoo!
I was going to say ignore this and go for it, you never know what's possible until you try. Then I saw the thing about them being stuck in chapter 11.
Go for it anyway! Maybe you'll get it where they don't. Ignore everyone saying it can't be done. I'm sure the same was said for a single WM party in FFI and that's possible.
...
But the thing is, you actually have a defense stat in FFI which can be boosted without leveling up, whereas in FFXIII, the only thing preventing later bosses from killing you is just huge amounts of HP, which no accessory can adequately give you, if I recall correctly.
No crystarium, no magic, it is possible, oh or no summons
This post brought to you by the power of boobs. Dear lord them boobs. Amen
Yeah, you'd be pretty screwed the moment you start using Vanille and Hope.
Bow before the mighty Javoo!
Solution: Hack the game so Hope and Vanille never existed. Come on, it would make things better.
Sorry - the moment you start using Vanille and Hope once they are l'Cie.
Bow before the mighty Javoo!
I take it back, the last fight is pretty damn tuff without magic
This post brought to you by the power of boobs. Dear lord them boobs. Amen
I really don't think a no Crystarium challenge would be possible given how restrictive the customization is in this battle system. But then, I wouldn't have thought you could get to chapter 11, so who knows.