Ha, nothing. I have two saves, I went through the entire game, got all the heart pieces/containers, all the golden bugs, every feature that could be done, I did, I got all the golden bugs, all the poe souls, got roughly 130ish hours, I have the biggest wallet, maxed out of course, and magic armor (w00t). I also have unparalleled skill, have unlocked all the hidden attacks, went through the cave of ordeals twice (the second time has more monsters), unlocked all the fairy springs, allowed access to fairies tears, and more! Oh course, its been almost a year since I dusted off that game. In fact, I've spent most of my time lately on my 360 rather than my Wii...
@John - Yeah, good intentions, though I am curious what you mean by logo (the sun's logo? Not meaning to pry, though). Although one can logically asume that most artwork would be available on the Glest Board if not anywhere else...