Whether it be The Super Mario Bros. Movie 2 or Sonic the Hedgehog 4, there's a chance for growth and surprises that would keep both franchises alive while strengthening them simultaneously.

Tails, a beloved character, may receive a spinoff to showcase his personal growth and inventions. Sonic the Hedgehog 3 is a massive success, with many saying it was the best in the first three movies.

Sonic the Hedgehog 4 is on the way! Here's every cast announcement, release date, teaser, and theory you need to know about ...