The Shadow World is a world thatus mirrors Alternia and Earth except for some differences. The Shadow World is full of shadowy versions of everyone, even those that do not exist. The Shadow World was destroyed by there "God" who merged all of the Shadow beings together. Shadow Kat was the only one who survived but was forever combined with everyone who used to live in the Shadow World. Because of this merging Shadow Kat not only has the ability to use everyone's abilities. He is also trapped in the Shadow World until he enters the game. Shadow Kat will be joined by the child of Lord English who was supposed to be the new sessions version of his father. He will be the one to give his other version the original Sburb game which he will alter. He will be bound to his other version called Kitkat Strider. The game must be played to save not only them but also everyone else that they care about from certain doom.