Beat the final boss last night. I'm so glad it is over so I can get back to other games.
 
One thing has me curious tho. After I beat the last boss, I unlocked another level of the  Crystarium . But for some reason I can't figure out how to go back and continue the game? The only options I get are SAVE GAME or EXIT TO MENU. When I save, it loads up  the same screen where I can either save or quit.  Anybody have any ideas? I'm curious to see if any more abilities are unlocked, as I was saving loads of CP in case the Crystarium was extended.