Personally I think ninja storm 2 was a complete upset and a disappoint to its predecesser ninja storm 1. The story mode was ok to a certain degree with the boss battles. But it was 2D with almost no interaction with the map itself. To improve I
UNS 2 isn't really a good game to be honest, hence you are forced to go through the annoying storymode in order to get the characters. You couldn't cancel your moveset in order to creat combo's, though I am glad you can create great combo's in UNS Generations!