Four 'Til Doomsday

Part 6:

Tails just had time to leap into the air with Shadows body before Robotnik's multitude of guns opened up. Slashing red comets exploded on contact with the wall behind him, showering him in painfully hot sparks. Bundling Shadow behind the Chaos tank, Tails spun one-eighty degrees and launched himself up to the ceiling.
The lasers smashed huge cracks into the metal, and Tails found himself pinned on all sides. Robotnik cackled as he surrounded the fox with an inescapable globe of gunfire. He would have dearly loved to gloat now, but the constant reports and impacts were too deafening for the animal to hear him.
He altered his aim, narrowing the ring of fire and trapping the boy in. and the ceiling collapsed. Great chunks of steel came tumbling to the ground, clanging and ricocheting his blasts back to him. He struck a button and a blue hazy shield sprang out of the ship, batting away the scarlet lights.
The shield dissipated and the guns poked their barrels back out with a clunk. Robotnik swivelled to look for Tails. The fox swooped down like an angry bird, directly to his face, where no guns could aim. Punching, kicking and biting, Tails was perfectly safe, Robotnik cursed.
He gave up trying to fend the boy off, and instead stuck a meaty fist as far as he could into Tails's fur chest. He yelped and landed on the floor hard. Looking up into about twenty barrels, he almost fainted.

Shadow was feeling faded already. Hating his weakness every second, he'd crawled far enough away from the tank to give himself a good run-up. All his energy lay in that tank, waiting to be fed into the eggman's robots. He would have one spin-attack to break it with. He didn't think he could manage another one anyway, but he certainly couldn't stand up to Robotnik when he was noticed.
He took a deep breath, put his head down and charged. For the first time in weeks, the world blurred and he felt his feet pounding on the ground, pushing him on. If only he weren't so weak. He curled up and launched himself into the steel drum.
With a clang and a thump, he landed hard on the floor. The container sported a massive dent, but his heart sank as he saw it had not ruptured. He heard the dictator's yell of surprise and annoyance and turned slowly, unable to do anything else.

Robotnik immediately targeted the hedgehog and fired- just a couple of shots to stun. Shadow wasn't escaping that easily. "Now you," he growled, turning back.
Tails had gone. Robotnik reared up in alarm, and someone dropped onto his head. "Hold still just a minute," said Tails, elbowing the doctor out of the way and grabbing the control stick off of him. "Here we go. I'm guessing this accelerates. whoa!"
Robotnik pushed the fox overboard as his egg mobile lurched forward at high speed. "No you don't. aaahh!"
The craft smashed into the Chaos tank, obliterating both in a shower of splintered debris. Green lightning crackled along the wires spilling out, surging across the floor and all over the mutated maniac. He clambered to his feet, face red and moustache blackened. "Hello, Doctor," came the voice behind his back.
He turned slowly, with mounting apprehension. Shadow stood, his voice strong, his eyes bright and sparkling with anger. A faint aura of silver sparks crackled around his now vibrant fur. The nightmare hedgehog threw back his head and laughed like hell, bubbling with energy. He stopped to see Robotnik disappearing through a hatchway in the far wall.
"He's going to activate his Badnik army!" cried Tails. "We have to stop him!"
Shadow shook his head. "With what? I've got all his energy. Wait outside; I'll meet you there once I've burned some of it off. I'll go Super if I don't."
Tails legged it back into the sunlight as behind him Shadow gave a delighted guffaw of laughter and smashed everything in sight. The fox listened in amazement to the sounds of destruction that echoed from within. Then the four metre thick stone walls exploded outwards and Shadow landed on his feet. "Hold on, not done yet." And he charged back in through an undamaged patch of wall.
The base disappeared in a cloud of dust and devastation. When Shadow had finally burned off enough energy to stand still, the entire structure had fallen in ruins. He looked at it in satisfaction for a minute, then yelled, "Okay, Eggman, that makes us even!"
"Whew," muttered Tails, who'd been worn out just watching. "Shall we go?"
"Yep." Shadow grabbed Tails hand and they vanished with a jade flash.