So far no.
Sonic Riders Fire Winds is just a rumor and not a real game.
Sonic Riders Fire Winds is not a real game. It will never be released. There is a third instalment in the Sonic Riders series though, Sonic Free Riders which is scheduled to be released for Xbox 360's Kinect motion system later on this year.
It is not real
I went to game stop and the guy there told me they were going to receive it at an undefined date.
No characters from Sonic the Hedgehog not real. It is just a game series, and TV show.
no
Yes
Flabashka
Yes, it was created during the "Dark Age of Sonic". Another game in the "Dark Age of Sonic" is the worst Sonic game in the world: Sonic '06.
It is a video game.
Sonic was created as a character for a Sega video game. And as you correctly stated in your question... Sonic is a hedgehog, not a person.
THE GAME SHARK CODE IS: 2ehji4 + your real name