Well. I have Ultimate Ninja Storm 3, not Full Burst. I don't know what else they added besides another portion of the story mode. I'm not sure if they added any more characters. However, the story mode that I beat (which I'm probably sure that Full Burst left untouched) is fun and hard. The voice acting is amazing and the story itself is fantastic. It follows the uh... Post-Pain versus Konoha arc so I would recommend either A. Reading the Manga, or B. playing Ninja Storm 2. I digress. What I played I was not disappointment in the least as the characters are vast and honorable mentions in include the reanimated Madara and all of the other 6 jinchuuruki's. I would recommend it, either UNS3 or UNS3 Full Burst. I would try Full Burst for you, get more your money worth and experience what I have not. Sorry for the long message. xP