Non-Spoiler Section
I loved this movie. It has many references. And is a love letter to the fans although there may be some corny jokes. Jim Carrey just makes them better. However, the movie didn't feel like something "Sonic the Hedgehog related."
Spoiler Section
The plot of the movie was a good idea Sonic making power outages feels like Sonic Adventure 2 for some reason. Tails being at the end shows there might a sequel.