Play a Zelda game, especially that on the Wii, both the great storyline and beautiful artwork (it's not just about processors and graphic cards, art plays a huge role) and it is just breathtaking. The section where you fight a group of goblin-type creatures on horse back, aim and shooting with grace is far better than twiddling some joystick and shooting a ton of zombies. Other examples of this are Metroid, which is also highly rated and consired by a fare few to hold it's own against 'graphic' giants because of it's artwork and great plot. I could go on with ones such as Mario etc. But the point I am trying to make is that Nintendo are able to create a gaming experience that has captured gamers since their creation. All this plus the addition of such innovative uses, such as Metroid's excellent aiming and shooting abilities, which is pretty much agreed to be much better than mouse/keyboard set up makes for a winner. Replicate that.