Tails: Cosmic Rush Fun
People who have rated low on this need to grow up and start learning Actionscript so they can make something better. I say, get off my newgrounds and come back when you're older!
This Flash, although unoriginal as some say, shows some pretty good Actionscript and Drawing skills. My only complaint it would be that it is pretty hard, you need to add powerups if you manage to get the file back.