RPG games for 360?

So yeah im basically wondering if there is a super long rpg game on the 360. I mean i already beat oblivion and mass effect i have in mind... ANything else?

Blue Dragon is a good RPGHalo-360

dont listen to this person, Blue Dragon suxs, get Eternal Sonata, and when your done with that I dont know what to tell you cause you've pretty much played all of the good RPG's that are on the 360.