IDW Issue 68 portrays a rare peaceful moment between Sonic and Tails, highlighting their different personalities. The Sonic the Hedgehog comics ... Sonic Adventure 2, which is where it first ...

Casey: “In one draft of Sonic 2, we actually, when they’re going through ... new characters from the video games, from sidekick Tails to friendly rival Knuckles and anti-hero Shadow.

The threequel picks up from Sonic the Hedgehog 2's credit scene introduction of Shadow the Hedgehog, as Sonic, Tails and Knuckles have to form an unlikely alliance with Dr Robotnik to defeat Shadow.