Not only are there plenty of Easter eggs during the movie, but a major treat awaits fans in one of the credits scenes with a surprising cameo. And now, director Jeff Fowler has explained the decision behind the scene.
But we wouldn't want to spoil it for you if you haven't seen it, so race away now if you haven't watched Sonic the Hedgehog yet.
So, in the second credits sequence, we see a ring portal open in Green Hills and Tails jumps out of it, having tracked Sonic to the location: "If these readings are accurate, he's here. I found him. I just hope I'm not too late."
It's a brief, but crowd-pleasing, cameo and likely sets up a sequel where Sonic and Tails will team up to battle Dr Robotnik.
Talking to Digital Spy, Fowler explained that he wanted to feature Tails as a nod to the fans and the wider Sonic world.
"There's so many great characters in the Sonic world and we really wanted the focus of this film to be Sonic or Robotnik, just because that's how we were all introduced to these characters back in the first game," he said.
"[Tails] was just a way of saying to the fans, 'Look guys, we love these characters, too. We might not have been able to include them in this story, but we would love to include them in future stories'.
"There are other characters like Tails that we would have so much fun working with, and hopefully we'll get the opportunity to do some stories with him."
Given the look of Tails in the credits scene, it seems as though they won't have any redesign issues with the character.
And with Sonic the Hedgehog breaking records at the box office, we imagine we'll be seeing Tails again in the future.
Sonic the Hedgehog is in cinemas now.
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