http://www.youtube.com/user/bpblu This guy accepts various obscure challenges for Genesis Sonic games, so I thought it might be of interest here. They're all quite interesting IMO, and many of them are unique, never-before-thought-of kind of things, for example the Out of Controller vids. I think you have to scroll back a little in his videos to see the actual challenges, though. Certainly nothing for TASers, but in terms of casual play I find it a very original concept. Perhaps we should come up with some of our own?