Sonic and Shadow fight at a volcano…and possibly in their super forms

The final important shots of the trailer show Sonic and Shadow locked in a fierce fight. It seems like they’re fighting at a volcanic eruption site. There are two important shots that fans think might imply something big for the climactic fight: At one point, we get a close-up on Sonic’s eyes, which, if you look closely, reflect multi-colored light that could be the Chaos Emeralds. There’s another shot where you can briefly see what looks like a golden streak of energy dashing past the volcanic eruptions.
Fans think this might mean Sonic and Shadow may use the Chaos Emeralds to change into their Super forms. In the Sonic Adventure 2 game, Sonic and Shadow change into their Super Saiyan-like forms to team up and reverse Gerald’s plan to destroy the world, but it would be a twist if we got two superpowered hedgehogs facing each other in the final moments. Along with the conspicuous space in the Team Dark line-up, it does imply the movie may still have surprises in store when Sonic the Hedgehog 3 premieres on December 20.