Sonic Underground has a lot of potential. But anyways, here, this web page should help:

http://en.wikipedia.org/wiki/Sonic_Underground

Thanks! The eppies I've seen are Wedding Bell Blues, Sonic Tonic, and To Catch a Queen.

I've been tossing a few ideas around in my head and part of the fic is where one of the hedgehogs (can't decide who it is yet) is captured by Robotnik and about to be roboticized. As the big metal tube comes down the hedgehog's life flashes before his/her eyes, ending with Queen Aleena's message when they went forward in time.

"you saw what happened when good triumphs over evil. I promise you that one day soon, this too will happen... I love you..."

"Mother..." the hedgehog groans.

Then I don't know what should happen next. >_<