New information about Sonic the Hedgehog 3, the sequel to the successful adaptation of the legendary game franchise, has been a long time coming – the last time we heard about the project was back in the spring, when it became known that Shadow, the traditional anti-hero in the Sonic universe, would be voiced by Keanu Reeves.

Finally, Paramount Pictures has released the first full trailer for Sonic the Hedgehog 3. It shows the appearance of Shadow the hedgehog and the fact that the main characters – Sonic, Tails, and Knuckles – will have to team up with Dr. Robotnik, traditionally played by Jim Carrey, to fight him.

The third part is supposed to continue the plot of the second part, or rather, to resolve the cliffhanger that ended the scene in the post-credits finale: back then, we were shown Shadow’s awakening at a secret facility where he had been cryostatized for over 50 years.

Sonic the Hedgehog 3 is due to be released worldwide on December 20.