[Scene: Workshop - Modern Day. The workshop is somewhat cluttered, yet cozy; softly whirring machinery hums in the background as blueprints are strewn over workbenches and gadgets of varied size blink with soft lights. Tails fiddles with a handheld device at his desk. Knuckles stands by the wall, crossing his arms and looks bored. Sonic paces rather casually, but apparently, something bugs him.
"Hey, guys, do you remember that Bio-Sonic guy? He was a real threat," Sonic says, breaking the silence.
Knuckles looks over at Sonic, his eyes narrowing slightly. "Yeah, I remember him," Knuckles says, quite serious. "That guy nearly knocked me out cold. I wasn't expecting someone to match your speed like that."
Tails lowers his wrench, looking between his friends. "He wasn't just fast," he says thoughtfully. "There was something… different about him. It felt like he was thinking for himself, not just following Eggman's orders like Metal Sonic or the other robots."
"Exactly!" Sonic says, nodding his head. "He wasn't some kind of brainless mechanism. He had some serious edge on him. And if we hadn't managed to stop him. I wouldn't even like to think about that possibility."
Knuckles snorts with an edge of a growl. "He is gone, okay? We shouldn't linger on that matter."
Tails slowly shakes his head. "Still, I just can't help but wonder what really happened to him. We never saw him again after that last fight."
The room is silent for a moment as the heaviness of the memory hangs in the air. Sonic's gaze becomes distant, as if he's being pulled back into the past. Slowly, the scene begins to blur and fade, rewinding in time.
[Dr. Robotnik's Hidden Lab – Flashback Begins]
Deep within a dark and secretive underground base, machinery clanks and whirs, while steam hisses from pipes lining the walls, with sparks flickering here and there in the dim lighting. Dr. Robotnik triumphantly stands before a large glass containment pod filled with glowing green fluid. Inside, floating motionless, is a figure: Bio-Sonic.
Robotnik grins wickedly, his shadow stretching across the room. "At last… the perfect weapon," he mutters to himself. "No more setbacks. No more interference from that insufferable hedgehog! With Bio-Sonic, I will finally have the ultimate power!"
With a flourish, Robotnik flicks his hand and presses several buttons along a panel nearby. The green fluid of the containment pod begins to drain away as mechanical arms remove cables that were attached to Bio-Sonic's body. His eyes never open as he descends to the floor. The air is silent for a moment.
Then, Bio-Sonic's eyes snap open, glowing faintly.
"Good," Robotnik says, smirking. "Welcome to the world, Bio-Sonic. Your purpose is clear-you will hunt down and destroy Sonic the Hedgehog. I created you to be superior in every way. You will not fail me."
Bio-Sonic stares at Robotnik, his expression unreadable. He says nothing but nods slowly. Robotnik chuckles darkly.
"Excellent. Now, it's time to begin your mission."
The scene then fades to a montage of Bio-Sonic training extensively inside Robotnik's facility. He runs through mechanical obstacle courses, dodges lasers, and smashes Eggman's robotic test dummies with ease. Meanwhile, Robotnik is in a control room, observing with growing satisfaction.
"Yes… Yes! You're everything I imagined and more," an excitedly outraging Robotnik exclaims. "Soon, Sonic will be nothing but a footnote in history!"
[Green Hill Zone – Sonic's Arrival]
In the current flashback, Sonic zooms across the colorful hills of Green Hill Zone, the air rushing through his quills. Leaping over a row of spikes, he does a spin through a loop-de-loop and skids to a stop at the familiar scene of Tails building a new gadget.
"Yo, Tails! What's the dealio, man?" Sonic asks, full of curiosity. He wipes a bit of sweat from his forehead and grins. "Another one of your fancy gizmos?"
Tails looks up from the radar device he is working on, smirking. "Hey, Sonic! Yeah, I'm working on an energy tracker," he says. "It's supposed to find anything unusual-like Chaos Emeralds or Eggman's machines-but it's been acting up. Something weird is messing with the signals."
Sonic crosses his arms, raising an eyebrow. "Weird, huh? Eggman weird or something else?
"I'm not quite sure yet," says Tails, his face serious now. "But if it's Eggman, he's probably up to no good. We need to stay on guard."
It is at this point that Knuckles suddenly drops from a ledge above them, landing with a heavy thud in the ground. He dusts off his hands and frowns.
"I don't like this," Knuckles says seriously. "My instincts are telling me something's coming. Something bad."
"Aw, come on, Knux," Sonic says, chuckling. "We've dealt with Eggman's bad ideas a million times! Whatever's coming, we'll deal with it-just like always."
Knuckles stares at him a moment before shrugging. "Maybe. But don't get too cocky. We've had surprises before."
Sonic smirks playfully. "Cocky? Nah. I'm just confident. Big difference!"
Tails snickers softly and shakes his head. "You two never change."
The three of them watch out over the beautiful, luscious landscape of Green Hill Zone. As serene as it is, there's a feeling of premonition in the air. Somewhere, Eggman is already initiating his plan. and Bio-Sonic is going to enter their lives in a manner they will never forget.
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Name: Sonic the Hedgehog (Classic)
Description: Commonly known as The Blue Blur, Sonic is an anthropomorphic hedgehog with blue fur that covers most of his body, and peach skin that covers his arms, muzzle, insides of his ears and front torso. He has small, triangular ears on top of his head, six long quills on the back of his head, two spines protruding from his back behind his shoulders, and a short tail. Sonic is 100 centimeters (3 ft 3 in) tall and weighs 35 kilograms. For attire, he wears red shoes and white gloves.
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Name: Tails the Fox (Classic)
Description: obscurely known as Miles Prower, Tails is an anthropomorphic fox cub with two tails. He possesses mostly amber fur, with white fur around his muzzle with cheek tufts, belly and his tail tips. He also has large triangular ears with white canals on top of his head, a small black nose, and three locks of hair on his forehead. For attire, he wears cuffed white gloves, white socks, and red and white shoes.
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Name: Knuckles the Echidna (Classic)
Description: Knuckles is an anthropomorphic echidna with red fur that covers most of his body, a black nose on his peach-skinned muzzle, a white crescent-shaped patch of fur on his chest, sharp teeth, (only visible when he is smirking or angry earlier) and amethyst eyes. He also has seven dreadlock-like spines around the sides and back of his head and a medium-sized, tri-crooked tail. For attire, Knuckles wears red and yellow shoes with green cuffs, light gray soles, and metallic, sextuple-bolted plates on top. He also wears large, white, mitten-like gloves with sock-like cuffs and two pointy, spiked knuckles on each hand.
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Name: Dr. Ivo Robotnik (Classic)
Description: Dr. Ivo Robotnik, commonly known as Eggman, is an obese human with a small, bald head. He has a distinct pinkish nose and a bushy, mahogany mustache. His eyes, which are very rarely seen, are colored blue. Eggman's height is 185 centimeters and he weighs 128 kilograms. Eggman's design features a totally spherical torso with thin but proportionate arms and legs. He wears a red top with a short yellow cape, attached to his shoulders by a triangular collar, black pants with attached boots and a pair of large silver buttons on the front. This outfit is complemented by white gloves and blue pince-nez glasses that completely hide his eyes. His mustache is neatly groomed, with only three tufts sticking out at each end.
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Name: Bio-Sonic (Main Villain)
Description: Bio-Sonic was made from Sonic's cells, made in a lab by Dr. Eggman. In his base form, Bio-Sonic closely resembles Super Sonic, but he sports a cyan hue on his skin. His form blends seamlessly with the other characters while maintaining a distinct, cunning, and intriguingly mysterious look, highlighted by his eye-catching red and blue shoes. He is also physically similar in height to Sonic himself. The single desire of Bio-Sonic is to eliminate Sonic and his friends.