Maybe I worded too loosely. What I meant was, Nintendo are not simply making the same sequel to a game like Mario, even though some of the original game mechani

Maybe I worded too loosely. What I meant was, Nintendo are not simply making the same sequel to a game like Mario, even though some of the original game mechanic is there, they have always in my opinion made each Mario game better than the last (like they have for Zelda and other games). They add in new features and other innovative gameplay mechanics that make it feel like more than just another Mario or Zelda game. The issue with Rovio is exactly how you described it, a new Angry Birds game with new graphics but the same mechanics, the same storyline and basically nothing new.