Absolutely stunning work there. I'm pumped to see what this "2013" business is all about.
To people who think this is a mixture, go watch the old ass Sonic cartoons (not Underground, the other two) or check out an old Sonic comic (pre-issue 100). You actually find out that this Robotnik is just another android, as are all Robotniks and Eggmans that you see. If one is destroyed, his memory is transferred via satellite to another android, and he continues on.
Back on subject, thank you for the nostalgia! =D