After settling in Green Hills, Sonic is eager to prove that he has what it takes to be a true hero. His test comes when Dr. Robotnik returns with a new partner, Knuckles, in search of a mystical emerald that has the power to destroy civilizations. Sonic teams up with his own sidekick, Tails, and together they embark on a globe-trotting journey to find the emerald before it falls into the wrong hands.
This was pretty much more of the same from the first one. They didn't change anything that worked. They perfectly introduced new characters from the video game series and they continued the story. My only knock would be that there was no reason for this movie to be two hours long but any extra time seeing Jim Carrey be the Jim Carrey of old shouldn't be questioned.
I would definitely recommend people checking this out. It's entertaining family time for the kids and the adults.