For one, Madden does change it's game every install. Defense changed from 09 to 10. Offense got better. The thing with Dynasty Warrior's is every game changes in game systems. It would be the way you get weapons, the way you level up characters, your bodyguards get changed. Every game is new in it's own way, yes the story is the same...they add extra parts of the war not put in other installments.
