Good deal then! I played the demo, but man...they didn't explain anything to you in that demo. I ran out of MP or whatever its called spamming dragon's swarm before I realized B could attack also. I won't start on this right away though, gonna finish up Digital Devil Saga then hop into it.
Edit: I lied. I'm around six hours in. Really enjoying it, except for insane difficulty spike at that boss from the demo. I said screw it and put it on easy to just kick his ass. Also I did it for the second fight with Zagi. How are you supposed to kill him otherwise?