Warning: Contains SPOILERS for Sonic the Hedgehog 2
Paramount's Sonic the Hedgehog 2 brings the Master Emerald and the seven Chaos Emeralds to the movies for a power boost to both Sonic and Dr. Robotnik, now sporting a bigger, better Eggman mustache. The Chaos Emeralds were actually housed inside the Master Emerald, which was shattered and subsequently reforged to free said Emeralds, but perhaps the most intriguing detail about the Chaos Emeralds now is the fact that there isn't any clue as to where they have gone. The Chaos Emeralds fly off into the sky after Sonic reverts from his transformation, setting up a major change for the next movie since the powerful emeralds are presumably not on Earth anymore.
Sonic the Hedgehog 2 follows the blue hedgehog on a globetrotting adventure after Jim Carrey's Dr. Robotnik returns to Earth in search of revenge against Sonic (Ben Schwartz). The movie also features the live-action introductions of popular Sonic characters Tails the Fox (Colleen O'Shaughnessey) and Knuckles the Echidna (Idris Elba). Knuckles, initially working with Carrey's newly outfitted Eggman, is in search of the Master Emerald, the location of which has been entrusted to Sonic by his late guardian, Longclaw the Owl. Dr. Robotnik betrays Knuckles and seizes the Master Emerald for himself to create a giant Eggman robot before he is defeated by the combined efforts of Knuckles, Tails, and Sonic using the power of the Chaos Emeralds.
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The disappearance of the Chaos Emeralds sets up a major sequel change because it will force Sonic and company out into space. Both Sonic the Hedgehog and its sequel have been road trip movies and a movie set in space
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