Sonic the Hedgehog 3 doesn't hit theatres until December 20 but spoilers have already leaked online, including of its end credits scene which sets up a fourth film. As reported by Kotaku, smart phone recordings of the end credits scene in particular have appeared on social media websites such as X/Twitter,

Sonic the Hedgehog 3 is finally coming to theaters this week on December 20. However, there have been some early screenings for press and fan events, which means spoilers are bound to sprout up ahead of time.