Infinite the Jackal is the primary antagonist in Sonic Forces. Once the leader of the mercenary group "Jackal Squad," he became obsessed with proving his strength after being defeated by Shadow the Hedgehog. Empowered by the Phantom Ruby, he gained god-like abilities that he used to help Dr. Eggman conquer 99% of the planet.

Originally known only by his prototype name "Zero," Infinite was once considered the "ultimate mercenary". His worldview and ruthless personality were born out of absolute humiliation. After his mercenary crew was entirely defeated by Shadow, Infinite felt immense shame. To shed his past and erase his identity, he donned his iconic mask and accepted Dr. Eggman's offer to wield the Phantom Ruby prototype.

Wielding the Phantom Ruby, Infinite's default jackal agility and swordsmanship were vastly amplified. He became capable of:

Reality Warping: Creating virtual worlds, illusions, and even a virtual sun.Telekinesis & Teleportation: Manipulating objects and moving across the battlefield effortlessly.Creation: Generating entire armies of phantom replicas of Sonic's past foes (e.g., Chaos, Zavok, Metal Sonic, and Shadow).

Because he relied entirely on the Phantom Ruby's power, he was eventually defeated by the combined efforts of Sonic and the player's Custom Avatar, leading to the ruby's destruction and his subsequent disappearance into its reactor.

Infinite is an anthropomorphic jackal with black fur, long white dreadlocks, and a bushy tail. His most distinct features are heterochromia—a blue right eye and a yellow left eye—with a prominent white scar over his right eye. He wears a silver mask, black gloves, spiky metallic boots, and the reality-bending Phantom Ruby embedded in his chest.

Build & Fur: Black fur, complemented by white markings on his torso, muzzle, and the tip of his tail. His back features a distinct white pattern resembling a ribcage.

Face & Eyes: He has heterochromia with his right eye being blue and his left eye being yellow. A large, white scar stretches across his right eye.Attire & Gear: He wears black gloves with silver accents, pointed metal high-tops with an infinity symbol engraved on the red soles, and a white neckerchief.The Mask

The Mask:

Before joining the Eggman Empire, Infinite did not wear a mask. As the masked "Ultimate Mercenary," his silver-colored mask covers most of his face. It features circular patterns inside the ears (one black with white, one white with black) and is designed with a black, lightning bolt-shaped piece that acts as an eyepatch over his right eye. The mask's right ear glows red when he channels the energy of the Phantom Ruby.

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You were just a member of the resistance.

Not just any member but a hedgehog who's siblings with the saviour of the world. Sonic The Hedgehog.

You weren't like him, you weren't optimistic. And sure as hell you don't like being a hero.

Everyone, including him tries to convince you that somewhere out there, something can change your mindset about the world..

To you. Its just meaningless.

War, peace, harmony, it means nothing to you.

But everything change when you were both captured and locked in prison in Dr Eggmans Death Egg.

Most of the times, the ones gaurding you ignores you.

But..

Him?

You are basically an anomaly, to him your apathy draws his desires to you.

You were lucky enough to be his favourite prisoner to taunt, talk, or insult and not actually physical torture.

But for your brother, Sonic?

Not so much, they torture him, including the masked jackal himself tortures him in cruel ways.

You were force to watch in the sidelines. What can you do? Nothing.

And you hate that. You hated everything.

Everything about him.. It's always about him, you hated that jackal more then anything

But still

You let your apathy get in the way.