One clearly stands out, however: Metal Sonic standing next to Emperor Eggman ruling over a post-apocalyptic future, something that would have presumably been part of an after-credits stinger ... and ...

In Sonic 3’s mid-credits stinger, an army of Metal Sonics show up to neutralize Sonic. But a savior arrives: Amy Rose, cloaked and armed with a giant mallet, and she lays waste to the robotic ...

In Sonic the Hedgehog 3's post-credits scene, we were introduced to Amy Rose and chances are we ... filmmaker Jeff Fowler teased the ramifications of the stinger which also features the ...

Shadow (Keanu Reeves) in Sonic the Hedgehog 3 from ... Weiss: The mid-credits stinger has some great setup for the future with the introduction of Amy Rose. Where did the idea come from?

Both Metal Sonic and Amy Rose were introduced in the Sonic 3 post-credits scene, which would then heavily hint at Sonic 4 being a take on the time travel antics of Sonic CD. The Blue Blur ...