[Xbox 360] [rpg] hard to describe game

So\nI am looking for a game and I cannot remember what the game is called? I know specific details about it, but only a few. For instance, one of the major boss fights, I think it was near the end is you're fighting this giant monster. Like thing with this npc, and when he does a light strong attack, you're or he does a laser beam and you run underneath her bubble, and it protects you, and there's also These weapons when you get near the end that are red, like they're made of like lava rocks and stuff, but they don't do lava, damnage.\nLast boss fight is you fight.I guess they would be yourself , but ik this is awful description I played it when I was little and I asked someone that they barrow them game and they said it starts with an "O" but im not entirely sure and its only melee welaons well ig