Note: The music track 'Boss Battle 1 (Brawl) plays throughout the battle, for a little amusement.

Mansion Mettle Part 1

Mecha Sonic had made his move and knocked out the power in the Mansion. Once the backup power kicked in, a battle quickly began between him and the Mii Fighters. Right now, he and Jay are in the heat of the moment trading blows until Jay delivered an uppercut and followed up with a Helicopter Kick combo. The final kick knocked Mecha Sonic over to Emily and both her and Jay kept knocking the robot back and forth.

"Evie, heads up!"

Jay punched Mecha Sonic over to her and she fired a fully Charged Blast. It sent him through a wall to the outside.

"Got him."

"Don't let your guard down, he's not done yet!"

Just then, Mecha Sonic appeared out of nowhere and delivered a roundhouse kick into Jay's face. He then bashed his body into the ground and even thought he couldn't show his pain, he was feeling intense pain.

"Hyah!" Emily screamed and unleashed a flurry of thrusts at Mecha Sonic only for each and every one to miss. She then dodged a swing and put her sword in a sheath Tabuu gave her. She then made shuriken appear out of nowhere.

"What? That's not in my data about you."

"Oh, so you know something about us. Well, let me surprise you with my Shuriken of Light!"

She threw the four she made and one nicked a cord on Mecha Sonic's arm.

"Gah! You'll pay for that!"

Meanwhile...

In another part of the Mansion Wario was running through the Mansion trying to find Mecha Sonic for a fight.

"Wario, don't you dare take that bucket of bolts on alone." Lucina warned him, but he didn't care.

"Or what, you'll punish me?"

"He'll kill you in 10 seconds flat!" Shulk added

"I'd like to see him try!" He said and turned off his communicator. He then pulled out his bike and kicked it into high gear. Right before he got to the turn in the hallway, the Mii girls came flying in front of him.

"Whoa, watch the bike!"

"That's the least of your problems." He heard and saw Mecha Sonic with Jay in his grip.

"Run! You can't take him alone!" He warned.

"I don't run from a fight!" He shouted and revved up his bike. He then began speeding towards the robot who threw Jay aside and didn't move.

"You're dumb if you think you can stop me in place."

Mecha Sonic ignored his words and held his hands. Wario's bike crashed and he flew off in an instant. Mecha Sonic began crushing the bike, making it smaller. Wario got really angry and charged towards him.

"Nobody trashes my bike and gets away with it!" He landed a few hits and sent him flying down the hall. just as DK came around the corner. The big ape swung his huge fist and knocked him into the portal room. He was warped to the Port Town Aero Dive stage, the racetrack. Wario and DK followed right after and kept up the pressure, until Mecha Sonic grabbed one fist from each of them. He took to the skies with the two in tow, began spinning them around till they were dizzy, then came crashing down and smashed them into the ground. He then heard the racers speeding their way over, but didn't care. He used both blasters in his arms and blasted every racer completely off the track.

"Now where was i?"

Just then, he got punched in the gut by Donkey Kong and was lifted onto his back. He then threw the machine where Wario Man unleashed an aerial barrage and beat the robot into the ground. Then, the Blue Falcon came speeding down the racetrack and sent Mecha Sonic flying out of the stage. He landed outside the portal room and was greeted by a plethora of fighters, aka: Dark Pit, Pikachu, Toon Link, Little Mac, Yoshi, King Dedede, Sheik, and Ness.

"You're in for a world of hurt, Bub!" Little Mac threatened

"(chuckles)"

"What's so funny?" Pikachu said and his red cheeks formed electric sparks

"No matter your numbers, all of you will fall before me!"

"We'll see about that!" Dark Pit shouted and separated his blades.

"Come at me fools."

Little Mac was the first and he lunged, only for him to get thrown into King Dedede. Dark Pit started swinging his blades, but each attempt was blocked. It was like Mecha Sonic knew where he was aiming. Once they were in a lock, Pikachu used Iron Tail to nail him from behind. Yoshi followed up with an Egg Roll attack. He hit the robot and came around for a second shot. Mecha Sonic went up, came back down, and on the way down Dedede started winding up.

"Get ready cause this might hurt!"

Dedede swung his hammer like a baseball bat and sent him flying through a window to the outside of the Mansion. Toon Link and Ness came out and continued the onslaught. They kept the pressure up so Mecha Sonic couldn't make a move, but he saw an opening and slipped past Toon Link. He fired his hand and snagged up Toon Link.

"This ends now!"

He threw the kid into Ness and blasted the both of them repeatedly. Immediately afterward, he tried a new trick when Sheik popped up from behind to attack. He turn and his hand glowed brightly and a humming sound could be heard. His hand then fired like a rocket at Sheik, who was too close to dodge.

(gasp)

Sheik was sent flying, but Mecha Sonic came nearby, reattached his hand and pounded Sheik into the ground.

"I haven't even begun to fight!"

He grabbed Sheik and tossed her into the air. He then deployed drones which blasted Sheik from all angles, then started ramming into her one after another.

"All right drones, finish her!"

But before they could, each one was blasted to bits. Then, Charizard swooped and caught Sheik before she hit the ground.

"What?"

He looked and saw Fox and Falco standing at the steps with their guns, but they were still in pain as they were leaning against the railing.

"(chuckles) You fools made a fatal mistake."

"You got lucky last time, but now the game ends here!" Falco shouted

"Agreed, but you lost!" Mecha Sonic said and fired a rocket, but Falco kicked his reflector to bounce it back. The robot intercepted his own rocket, but Fox fired a blast into the hole of the rocket and it exploded dealing heavy damage against Mecha Sonic.

"Yes." Fox said, but dropped to the ground on all fours. Greninja appeared in front of them in a defensive stance.

"You two should be resting, not putting yourself in more pain."

"It's gonna take everyone here to beat that mechanical freak." Fox argued.

"He's right." Peach agreed. She appeared with Zelda as well as Ganondorf, Bowser and his son, Lucario, Jigglypuff, Olimar, Marth, Ike, and everyone else to battle Mecha Sonic.

"You should've surrendered when you had the chance." Mecha Sonic spoke and his eyes turned red, his body changed to black and began to spark like crazy. After that, a bright flash swallowed him in and blinded everyone. Nobody saw what was in store for them.

Author's Note: Hope you enjoyed the chapter and please review.