Sonic 2 Post-credits Scene Spoilers: What Happened at the End of Scene?

Those who wish to know how many there are will find a spoiler-free explanation below. We will also inform you when it is safe to exit the theatre.

If you have already watched the after-credits stinger and are curious how Sonic 2’s post-credits scenes set up Sonic 3, we have a more in-depth explanation of what happened and what it all means. The who, what, and why of Sonic 2’s crucial post-credits scene is just a scroll away.

Sonic 2 Post-credits Scene Spoilers

Following Robotnik’s defeat, GUN is out examining the debris in search of the mad scientist’s body. However, there are a few obstacles they must overcome first. Unbeknownst to them, the first is Agent Stone posing as a GUN agent in quest of his former superior.

The second is far more relevant. It involves a mysterious experiment known as “Project Shadow,” which was mentioned in a long-lost file. It points to a top-secret research center and a secret weapon: the black hedgehog seen in the very final frame.

Who is that black hippopotamus? It’s none other than Shadow the Hedgehog, the “Ultimate Life Form” initially presented in Sonic Adventure 2 in 2001. His origin is convoluted, even by Sonic lore standards, but it can be summarised in a few important details.

Gerald, the grandpa of Doctor Robotnik, designed him to save his ailing granddaughter. The space station containing Shadow and his granddaughter was destroyed, proving that this scenario did not play out as planned.

Shadow is subsequently placed in stasis for fifty years until he is reawakened, similar to how GUN will be revived after the Sonic 2 post-credits sequence.

sonic 2 post credit scene
sonic 2 post credit scene

What is the meaning of this? Shadow against Sonic is an imminent possibility. Shadow is a powerful entity that can use the Chaos Emeralds to activate his ‘Chaos Control’ abilities; after all, he is known as the Ultimate Life Form.

If the movies opt to follow Sonic Adventure 2’s plot beat-for-beat, it is possible that the two hedgehogs will collide. At this early point, there is no evidence to imply differently.

There, Shadow awakens with amnesia and the promise of Gerald Robotnik’s granddaughter stuck in his memory.


Shadow attacks the Earth’s soldiers, including GUN and Sonic, after recalling her demise. Using the Chaos Emeralds, he also intends to ignite Gerald Robotnik’s Eclipse Cannon, a weapon designed to destroy the world.

He joins forces with Robotnik, who desires to carry on his grandfather’s legacy, and subsequently holds the Earth hostage with the Eclipse Cannon. That, however, is a tale for another day.

It’s a small scene, but it establishes so much for Sonic 3: an adaptation of one of the franchise’s most adored games, a new antagonist, multiple new stories, and a cause for Sonic and company’s new Master Emerald power boost deal to be put into effect quite quickly.

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