Third person pov
It's a pretty normal day in green hill, flowers are blooming, birds are chirping, a black and red streak passes- It's also a pretty normal day for Shadow the hedgehog to be running.
Meanwhile in Eggman Nega's lab…
"Things are going to be fun three days later…hehehe."
Shadow is still running; unknown what tragedy will happen three days later.
Time skip: Three days later
A lot of animals has disappeared, even Shadow can't help but notice.
"Why has so many animals disappeared…"
Shadow the saw some pods, out of his instincts, he jumped on one, and an animal came out.
"Be free!"
After freeing a bunch of more animals, Shadow saw some Badniks
"Nega! I should have known that you are behind this!" Shadow said through gritted teeth.
Nega appeared.
"Hohoho! Come and get me, brat!"
Nega flew away, Shadow lost sight of him.
"Dammit! Gotta go fast!"
Shadow ran, picking up some rings along the way "I'm going to need these."
So Shadow ran, and he got through
Green Hill Zone
Marble Zone
Spring Yard Zone
Labyrinth Zone
Star Light Zone
Scrap Brain Zone
He reached
Final Zone
Shadow emerged into final zone.
"I have no rings left…" Shadow looked at himself, then quickly shakes the thought off.
"That isn't stopping me!"
Final zone is surprisingly small, with some plasma blasters on the walls.
Shadow barely dodged a plasma ball "Gotta be careful around here-"
Shadow dodges a piston from the ground that could have crushed him, Nega is inside a piston, jeering at him.
Nega made of mouth shape of "GET ME IF YOU CAN" Before the piston sank down below.
Shadow waited for the chance, when Nega popped up back again, he spin dashed into the piston, creating cracks.
The plasma balls are getting faster and more strong "Egghead is obviously anxious now. "
"I'm still going to defeat you."
Finally, after the 8th spindash, Eggman Nega breaks out of the piston with his broken Nega Eggmobile and starts flying away, Shadow catches up to him, while he is flying over a bottomless pit.
Shadow spindashes and hits the mobile, it explodes and fells into it.
Shadow looks as the mobile fall"If I let you go you will start creating trouble again."
Shadow runs back to Greenhill, all the animals are free.
Shadow has a peaceful look on his face "Just another Normal Day."