 Roxas ' first appearances were cameos in " Another Side , Another Story " , a bonus trailer found in Kingdom Hearts , and in the ending of Kingdom Hearts : Chain of Memories . In Kingdom Hearts II , Roxas is introduced as a boy living in a digital replica of a city called Twilight Town . <unk> of the virtual nature of the city , Roxas begins to dream about the adventures of Sora , the series ' protagonist . He later encounters Axel , a member of Organization XIII who was given orders to rescue him , and Naminé , a Nobody who tells him he is Sora 's other half . Shortly after meeting , Ansem the <unk> , the creator of the virtual world , Roxas learns the nature of Twilight Town as well as that Ansem erased his memory , and implanted false ones to make Roxas unaware of his past and then make him merge with Sora . Ansem leads Roxas to an old mansion where once reaching an asleep Sora , Roxas rejoins with him , allowing Sora to wake up . Sora later learns that Roxas is his Nobody , created during the events of the first game after Sora briefly turned into a Heartless . Xemnas brought Roxas to Organization XIII as he could wield the Keyblade , a weapon which would help them to capture hearts . Roxas later betrayed the Organization and encountered one of Sora 's friends , <unk> , who captured him to help Sora wake up . Roxas makes two appearances near the end of the game . The first is in a mental battle with Sora depicted as a cut @-@ scene , and the second is with Naminé , who has merged with her other self , <unk> . In the re @-@ released version of the title , Kingdom Hearts II Final Mix , Roxas ' fight against Sora was expanded , making him a boss character . The battle was meant to be interactive in Kingdom Hearts II , but time constraints imposed from creating fights for the other Organization XIII members prevented inclusion . With the opportunity to include the fight , Nomura 's team worked hard to make it entertaining for players . Additional scenes regarding Roxas ' past were added to the game to add to the mystery around him . 
