Disclaimer: You guessed it; I still do not own Ryuusei no Rockman.

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"Earth is doomed." Hikaru towered above Tsukasa.

Terrified, Tsukasa looked between his twin and the screen, where White Gemini bore an expression similar to Hikaru's. Andromeda's hands loosened at the wrists and spun a tight circle, forming two crimson drills. Leaning forward, the weapon burrowed into the ground.

"Subaru!" War Rock yelled. "The Andromeda Key!"

Rockman lunged at White Gemini, but the latter leapt onto another wave road above.

"The ultimate weapon has been activated. Andromeda will explode within Earth's core…" Hikaru rose before the screen, his voice mixing with White Gemini's, "and destroy this planet!"

His chest shook, then White Gemini threw back his head and laughed. He streaked into the sky, his cackle echoing behind.

"Matte!" Rockman sped after him.

Stop this… stop this, Hikaru!

"Hmm. Poor Tsukasa, so weak and helpless."

Please, stop this, Hikaru! Tsukasa pleaded. Can't you see what horrible consequences will occur?

Hikaru grinned. "Yes. So much pain. Your friends and all of Earth will be wiped out in mere seconds."

Please, Hikaru, stop. So many people will die. You can't want this!

"Oh, but I do. You see, Tsukasa, I am an entity of darkness. Every negative emotion caused by the trauma of your youth has consolidated to form me. I was born of darkness, and only strive to accomplish what you abhor."

No… Tsukasa cringed. You can't do this…

"It's so stupid how many times you say that." As he sauntered up to Tsukasa, Hikaru's mouth drew into a thin line. "Let me educate you in a fact you cannot seem to accept. You have no say here. Your words are wasted breathes. The reason the Denpa comet harmed Gemini and me, yet left you untouched, was that you had no true presence in this mind." Hikaru stood above Tsukasa. He reached down and grasped him by the throat, then raised Tsukasa above his head. "When that car crashed your reign over this body ended. The moment you released that Wave Scanner, you lost control. Your hand dropped it, but it wasn't your hand that picked it back up."

Tsukasa winced, clutching at his twin's hold. What… what do you mean?

"You're dead, Tsukasa." Hikaru grinned. "Gemini Spark requires nothing from you. As I control the body, I can accept and deny Gemini's influence. When Gemini Denpa Henkans, his and my consciousness manifest. You only provide the human body. For some reason, your mind awoke, but the fact doesn't change…" He drew Tsukasa closer to his face. "You're dead."

Dead…?

Hikaru chuckled. "If I were to release my control of this body, you'd be dead, Tsukasa. There is no point in you fighting. Subaru-kun resists in vain. You can't help him, and he can't help you."

In the mirror, Gemini and Rockman shot out of the atmosphere.

"Earth will blow through space in a few short minutes."

No.

Hikaru furrowed his brow. Tsukasa's tone had changed. There was not a hopeless resistance in this denial, but firm resolve.

His expression concealed in shadow, Tsukasa gripped Hikaru's wrist. You're wrong.

"Nani?"

I wasn't entirely unaffected by the Denpa comet. I only suffered from minor fatigue, but I was still harmed. I still exist. Tsukasa grabbed Hikaru's forearm. I did not fail to force Gemini out. I was winning until you appeared. I did not entirely lose that battle.

His brother scoffed. "It does you no good, Tsukasa. You remain without power."

Tsukasa's eyes snapped open, piercing Hikaru's haughty gaze. His jaw set, he tightened his grip on Hikaru's arm.

I am not completely without power. I almost forced Gemini out, and I will stop you!

A rush of energy shocked Hikaru's skin, and coursed his veins. The blast threw them to opposite sides of the viewing screen. Suppressing a groan, Tsukasa staggered to his feet, and gripped his side. Hikaru rose, wiping the corner of his mouth.

"How can you…?"

I am not without power, Hikaru.

The boy smirked. "Why, Tsukasa? Why fight back now? You've always been content to sit back and watch. What makes now different?"

Tsukasa stared at Hikaru. The same question echoed through his head. He wasn't a hero. He wasn't bold or brave. What drove this rebellion within his heart?

My friends' lives are in danger.

Hikaru stared. "Your friends? You want to protect your friends?"

I made a mistake. When I was under that truck, I backed down. I was afraid and let you make the decision… a decision that has jeopardized Earth.

"You can't undo that, Tsukasa."

I can fix it. You made your decision, Hikaru. Tsukasa straightened and set his feet apart. Now, I'm making mine.

"Ha!" Hikaru smirked.

His brow creased, Tsukasa held up his hand. A bolt of white light shot from his hand at Hikaru. The boy jumped to the side.

"You do realize, Tsukasa, if I'm gone, you'll die?"

If I'm truly dead… then my body isn't worthy to walk around in someone else's control.

"Well then…" Hikaru grinned and extended his arm. "Enjoy defeat."

Yellow energy shot from his palm, and Tsukasa jumped away. As he landed, he cringed. His body had sustained too much damage already. He had to make every move count.

Hikaru shot a volley of energy balls around Tsukasa. He rolled away, and another blast burst from his palm. The boy sidestepped it. As Tsukasa's breathing grew more labored, Hikaru scoffed.

"Look at yourself, Tsukasa! You can barely stand!" He swept his arm towards the screen. "Gemini flies from Earth as we speak. Your Subaru-kun has no more hope than you do."

As he attempted to ignore the cry for rest echoing through his body, Tsukasa stared at the viewing mirror. Could they truly do nothing? Had they suffered so much to lose? That couldn't… it wouldn't happen.

In the screen, Rockman raced into space after Gemini Spark.

"We'll lose him at this rate." War Rock grimaced.

"Okay, then. Gravity Stage!"

The next moment, White Gemini grunted. "There's gravity weighing me down…!"

Rockman appeared behind him, and wrapped his arms around White Gemini's waist and shoulder.

"I have you, Gemini Spark!"

"Che…!" White Gemini looked over his shoulder. "You should run while you still have the chance! Earth is about to explode through space!"

"Yeah, right!"

White Gemini sneered, holding up the Andromeda Key. He flicked his wrist, and the glass orb plummeted towards the Earth.

"The Andromeda Key!"

Rockman pushed White Gemini aside, and darted after the Key.

"You're too late!" The FMian streaked further into space.

Hikaru chuckled. "Baka…"

A low buzz filled the expanse, and Tsukasa turned his head back to his brother. As he threw up his arms to absorb the impact, a large energy bolt hurtled him onto the floor. His face contorted, Tsukasa lay on his back. It was too painful to move. He heard approaching footsteps. He had to rise. The pain vibrated through his body. The footsteps halted by his head. Tsukasa couldn't even open his eyes.

"You're utterly embarrassing, Tsukasa."

A hand pressed against his chest. His limbs lay paralyzed at his side. Another buzz filled his ears.

"You're finished."

Tsukasa cringed. There was no energy left in him. He prepared for Hikaru's final blast.

Nothing happened.

The buzz had silenced. Tsukasa forced one eyelid open. His hand still compressing Tsukasa's chest, Hikaru stared at the screen.

"Why…"

"Why didn't it explode?"

Shifting his gaze toward the screen, Tsukasa could make out White Gemini's furrowed brow as he streaked farther from Earth. He turned away, but then his eyes widened and his mouth dropped open. The mirror suddenly blazed with a yellow light that engulfed White Gemini. As his form shrunk and distorted, White Gemini screamed. Then he was gone.

Tsukasa felt Hikaru's hand stiffen. The boy's widened eyes grew unfocused, and his mouth dropped open as if gasping for breath.

"N-Nani…?"

He stumbled back, staring at the yellow mirror. The radiance faded in a dim glow. Suddenly, the screen began to spark, and the black expanse vibrated. Hikaru spun around, blinking at his sparking black world.

"What... what's happening?"

Tsukasa winced, but forced himself into a sitting position. He tilted his head, dazedly watching Hikaru swing his head from side to side. White Gemini… he was defeated.

You lost…

Hikaru spun toward him. "Nani?!"

Tsukasa's eyes locked with his twin's, realization washing over his face.

You lost, Hikaru. The Andromeda Key was destroyed. He narrowed his eyes. You lost.

Hikaru gritted his teeth. "Well, so have you!"

He ran towards Tsukasa, yellow energy buzzing around his fist. However, an energy bolt exploded from the screen, blocking his path.

Tsukasa's eyes widened. He couldn't sit there, or he would be finished. Pressing against his knees, he struggled to his feet. After taking several strenuous breathes, he straightened, then gasped.

Hikaru glared, and thrust his hand out. Tsukasa staggered back, but his brother caught hold of his neck. Pulling him close, the boy hissed, "You think you've won, don't you?"

Tsukasa coughed, gasping for the breath held captive in his throat.

Hikaru lifted his hand, palm glowing. "You're the one who's truly lost."

His hand raced to meet Tsukasa's abdomen, but stopped a few inches from it. His body shaking, Hikaru's eyes again lost focus. He thrust Tsukasa back, and gripped his head.

The floor shook, and the bolts of energy reached into the far reaches of the black expanse. As he watched Hikaru's face contort, Tsukasa saw his chance. Taking a deep breath, he bit his lip, and extended his arm. A white light spiraled around his wrist, then shot from his palm. It threw Hikaru back, slamming him against the mirror. A long crack appeared in the glass above his sparking body.

Tsukasa's head snapped up. Summoning the last of his strength, he raced forward and collided with Hikaru's body. The glass screen shattered, and they fell through. As Tsukasa closed his eyes, he felt his brother's body disperse. He had done it. They had won.

A small smile graced Tsukasa's lips and he was engulfed by the crushing black void.

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Author's Note: Ahhh!! cries It's over. Oh, I've loved writing this story, and I'm so sad to end it! I think I'll add an epilogue in the future if my readers really want one, but for now Tsukasa's Demons is temporarily completed (yes, I know that's an oxy-moron.) Well, I hope you liked it!! sniffles I sure did, and don't want to be done! (Oh, I went back through my previous chapters, and fixed up some mistakes.)