Sonic/The S Factor: Sonia and Silver

Version 1

 * Sally as Sonia
 * Sonic as Silver
 * Dr. Robotnik as Eggman Nega
 * Tails as Scourge
 * and more

Version 2

 * Amy as Sonia
 * Sonic as Silver
 * Dr. Eggman as Eggman Nega
 * Tails as Scourge
 * and more