Tails, who is Sonic's best-friend and sidekick, first appeared in 1992 with the release of the video game Sonic the Hedgehog 2. Tails is a yellow-orange, two-tailed fox whose 'real name' is Miles ...

It's not uncommon for the Sonic films to tease new characters with their post-credit sequences. The first installment teased Tails' arrival, for instance. As for the first sequel, its closing ...