Well Sonic was having a nice time or something and Dr Eggman hired Silver(who had come on a mission from his time to change the future)Silver tries to kill Sonic but they end up working together to beat Mephilles the dark and Iblis and Solaris
sonic 2
Sonic met Tails first, then Knuckles.
In the episode Tails' new home, sonic has a flashback showing how he met Tails, but it is unknown when.
in sonic x you can find it write sonic x episode 18.
No, but its in Sonic X the cartoon.
at the firs city
Sonic and Amy first meet in the animated series "Sonic the Hedgehog" in the episode titled "Lovesick Sonic," which is the sixth episode of the first season. In this episode, Amy becomes infatuated with Sonic and tries to win his affection, leading to various comedic situations. Their meeting marks the beginning of their friendship and sets the stage for their adventures together throughout the series.
were did 3 tails get there tails from
sonic met rouge in sonic hereos when his team-team sonic-(sonic,knuckles, and tails) were fighting with team dark (shadow,rouge and omega)
Sally is Sonic's current girlfriend, back from Knothole Village. When Sonic and Tails arrive their old home, they meet her and Bunnie.
no tails does not live with sonic.
Sonic visited West Side Island and while he was away from his plane, Tails stalked him for a while. Later that early afternoon Tails looks at Sonic's plane and then finds Sonic sleeping under it. He later sees the nearby forests explode as Robotnik has arrived and Sonic wakes up and decides to work with Tails.