Guilty Gear Xrd: -Sign- updates the popular 2D fighting game Guilty Gear series with new characters and graphics, as well as four main modes of play:
Network Mode: The player can fight in online matches.
Practice Mode: Features a training mode, tutorials, and challenges.
Battle Mode: The player can battle offline either alone, with a friend, or in a special M.O.M. mode.
Story Mode: Learn the whole story of the game in a film-like "anime" of several chapters.
As players progress, they can also unlock extras for viewing in the Library.
Regarding the story - after the events of Guilty Gear 2: Overture, everybody thought the kingdom of Illyria, all but destroyed it may be, was safe from the threat known as Valentine. But then, one day, a young girl named Ramlethal Valentine came to Japan and declared war against the entire world.
With the memory of the "Baptism 13 Incident" still fresh in their minds, the nations of the world were forced to take this threat seriously. Now the nations of the world have no choice but to rise up against the "Merciless Apocalypse" and take her out. And among the souls Ramlethal has deemed "unworthy" who are trying to make her eat her words are Sol Badguy and his fellow assassin, Ky Kiske of Illyria.