I dug out Super Mario Sunshine a few days ago. Started it up and quickly realised why I'd stopped playing it in the first place, and that is that I suck at those darn obstacle courses! I always panic and do something stupid like simply walk off the edge of a platform to my death.
That and Spiderman 2, which I stopped playing because whenever I play it, my Gamecube makes these whizzing/clicking noises like it can't quite read the disk. As soon as I hear that, Im just waiting for the error message to pop up.