Man this game is awesome. Anyway, I was wondering just how many things there are in the game that you can't get just anytime - eg. a Hunt that you can only complete before such-and-such part of the story has passed by, or an item that you can only get once and never again, etc.

Please, of course, mark all story-related spoilers in spoiler tags as I'm still in progress of playing the game. I just keep wondering if I've missed out on something, and I hate that feeling.