It has practically become a ritual in the world of Monster Hunter clones (though please see my article on the original Soul Sacrifice to find out why calling this game one may not be fair) to release an expanded version of a game approximately one year after the original has released. Monster Hunter itself started the trend with Monster Hunter G, and has done the same thing for practically every main installment in the series since. You can usually expect one of these expansions to add a ton of new quests and weapons. If you're lucky, you may get a few new minor features, bug fixes or optimizations. They really are for fans of the first game who just want to play some new content and are willing to pay the price of a whole new game for it. I'm very happy to say that Soul Sacrifice Delta is a huge exception to this rule. Everyone involved really went above and beyond to create what, in many ways, feels almost like a whole new game.