Outside of Sonic World in Sonic Jam, I don't believe Classic Sonic, as the 1990s version of the character has been called, has ever been seen in 3D outside of the leaks of the cancelled Sonic X-Treme. Instead, Sonic became taller, thinner, with green eyes and much less of a 'tude. Any reason why Sega decided to almost totally change the character for the 3D era? Why was Classic Sonic never given a chance up at the 3D bat outside of Jam? Also, are there any 3D fangames which feature Classic Sonic?