While Sonic the Hedgehog 3 writers were adamant they wouldn't shoot Maria dead, they had to come up with a different way to give Shadow its revenge arc.

Sonic the Hedgehog 3’ introduces Shadow (Keanu Reeves) to the Sonic films, along with Gerald Robotnik, and teases another villain for the future of the franchise.

We can confirm that Sonic the Hedgehog 3 has two credit scenes – and you absolutely do not want to miss them. The first one comes straight after the title at the end of the movie, so you likely won't even have gathered up your coat by then. But then there's another one post-credits that's also worth sticking around for.