One essential principle has guided the 'Mario' series for nearly four decades: Mario transforms. During a blisteringly-hot summer 15 years ago, Nintendo released 'Super Mario Sunshine,' its highly-anticipated follow up to the revolutionary 'Super Mario 64.' The game failed to deliver on the promise of its predecessor. In our new feature, we look at how the flop transformed the careers of Nintendo’s brightest designers and shaped 'Super Mario Odyssey.' Head to RollingStone.com to read the full story.