It was now midnight. The large gang of Bowser, Ludwig, Wendy, Larry and Morton had made the long journey to Princess Peach's castle, and were now walking across the bridge. Every one of them was nervous, knowing that there was a good chance that they could be killed. Bowser opened the door to the castle and peeked inside. There was nothing but skeletons of creatures in the room, and he heard screams coming from the throne room across the room. "This doesn't look good," he gulped. They all entered the castle. He stopped and looked back at the koopalings. "Ok, we can't do anything without that antidote. Somebody call Iggy."

Larry whipped out his cell phone and called Iggy. "Hello?" answered Iggy.

"Yeah, where's the antidote?" asked Larry.

"I'm done, but I've been looking all over the castle for you guys! Where are you?"

"We're at Peach's castle. Ludwig cast a teleportation spell—" Larry glanced up at Ludwig.

"What? I have trouble thinking under pressure!" he claimed.

"—and now Mario's over here. How quickly can you get here?"

"Uh…I can use a couple of pipes, but it'll still take five minutes."

"Fine. We can wait." Larry hung up.

"Somebody has to go in there and try and restrain Mario so that we can get the antidote in him when Iggy comes!" said Ludwig.

"But he's invincible!" asked Morton.

"We may not be able to hurt him, but we can still hold him back so that somebody can pour that antidote down his throat! How hard can it be?"

"Fine. I'll go try and—" began Larry.

All of a sudden, the doors to the throne room were thrown open, and a toad that had been brutally beaten was crawling out. "Please…help…me…" Something grabbed it by the legs, and it was yanked back inside. The doors closed again.

"Never mind, I'm good."

"Why doesn't Dad go?" asked Wendy. Everyone stared at Bowser.

"Why me?" he asked.

"You're the biggest! You have more blood to lose if Mario rips you apart!" mentioned Morton.

"No!"

"How about this: Just go in there and stall him, and then we'll all ambush him! Iggy will be here by then, and we can't cure Mario!" said Larry.

Bowser sighed. "Fine."

He slowly walked up to the throne room door. He gently opened it and slipped inside, closing it behind him. The princess was bruised all over with a ripped dress, inside a hanging cage in the corner of the room. Sitting on the throne in the room was a large koopa who looked similar to Bowser except for the fact that he was grey and had brown hair, and it was chewing on a toad's head. Bowser saw a small red cap on him—it was Mario. "What the hell!" he screamed.

Mario looked up and growled. He threw the toad across the room, into a pile of other chewed up and brutally injured toads, and stood up. "Look who showed up to stop me!" roared Mario.

Bowser tried the handle to the door, but it wouldn't open. "What? Let me in!" Bowser pounded on the door.

"Stop cowering! Just distract him! He's a plumber—a crazy one with weapons—but a plumber! It can't be that hard!" yelled Wendy from behind the door.

"He's not a plumber anymore! He's a giant koopa!"

"Say what?"

Mario grabbed Bowser by the tail. He dragged him from the door and threw him into the throne. Bowser slammed up against the throne, smashing it into pieces. He got back on his feet and faced Mario. He took a stance and charged at him. Mario charged at Bowser. The two ran towards each other, until Bowser stepped out of the way, completely missing Mario. Mario slipped and crashed through the wall in front of him. Bowser laughed. "You're not so tough after all!" Mario got back up and growled at Bowser. His eyes glowed red and his muscles grew in size. Bowser's laugh dwindled until he went silent. "Shit." Mario ran towards him, holding back his fist, and punched Bowser in the face. Bowser flew in the air and landed on the pile of toads.

In the main room of the castle, Iggy ran inside and met up with the others. "I've got it!" he said. He held up a beaker of green, bubbling liquid. "This'll cure him for sure! Now where is he?" The koopalings opened the door to throne room to find Bowser and Mario fighting each other. They all saw the koopa Mario.

"How'd he do that?" asked Morton.

"There must have been traces of Dad's DNA in his sweat!" said Iggy. "The gas that turned him evil in the first place sent out hormones that made him evil. The traces of DNA in the gas must have also sent out hormones…hormones that are usually released when a koopa is going through puberty! Hormones that give koopas their spikes, shells, tails, horns—"

"So Mario went through puberty in less than a day?" asked Ludwig.

"Yes! Now hurry up, let's get inside and get this down Mario's throat!" The koopalings charged inside. Mario and Bowser were at hand-to-hand combat, throwing punches at one another in the middle of the room. "Dad! Try and hold him!" yelled Iggy. Bowser wrapped his hands around Mario. Mario pushed Bowser away, and punched him in the gut. Bowser bent over and groaned in pain. Mario laughed and hit him in the head hard enough to make him fall down.

"Isn't there something else you can do? I can't fight him forever!" cried Bowser.

"Ok, then. Let's try Plan B: Wii Sports," said Larry, clutching the Wii remote and nunchuk he was still carrying in hand. He ran towards Mario and pounced on top of him. Mario wiggled around, but Larry held on as though he were riding a mechanical bull. He wrapped the cord connecting the Wii remote and nuncuk around Mario's throat, blocking Mario's windpipe and choking him. Mario stumbled as he tried to get Larry off his back. "Now!" yelled Larry.

"Now what?" yelled Wendy.

"Now…anything! Do something!"

Morton rolled himself towards Mario in his mop cart with his golf club. When he reached Mario, he held up his golf club and swung under Mario's feet. Mario lost his balance and fell down flat on his back—on top of Larry, as well. "Ow! I'm already injured!" yelled Larry.

"Iggy, the antidote!" yelled Bowser.

Iggy ran across the room with the antidote. "Here, I've got it—" He tripped over a toad skeleton and fell down, accidentally throwing the antidote up in the air. Wendy ran as fast as she could, leapt up into the air, and caught the antidote. But it was clear as she landed that she was headed straight for a wall. Ludwig quickly pointed his wand at Wendy and sent out a blue beam of magic, catching the antidote and Wendy before they hit the wall. He dropped Wendy next to Mario. She opened up his mouth and poured the antidote down his throat.

Mario struggled. He grunted and moaned, until he finally let out a loud, menacing roar. He began shrinking in size and turning back into a human. He returned to normal, and his skin and clothes turned back to their regular color. He moaned and opened his eyes. His eyes turned from red back to blue. "What…what happened?" he whined. He sat up and looked around the castle: He was surrounded by the koopas, there were injured toads and toad skeletons everywhere, the room was a complete mess, and the princess was in a cage, hanging in a corner above him.

"Mario! Get me out of this cage!" she demanded. "You are going to pay for this!"

He looked up at Bowser. "What did you do?"

"What did I do? You probably killed half of these toads, and a good portion of the minions at my castle! And you came pretty close to killing me and my children…actually, I could care less about them."

"Still here, Dad. Still here," mentioned Iggy.

"…Uh…sorry…"

"S-sorry? That's it? You!...You just!…I…" He balled up his fists. "You know what? You're gonna pay for this!"

Bowser and the koopalings were lounging by a pool, sipping lemonade and enjoying the sun. Bowser clapped. "Slave! I need a refill!" he yelled, holding up his glass. Mario slowly trudged along in a butler outfit, holding a tray of lemonades. Cinderblocks were attached to his legs, making it very difficult and exhausting for him to walk. After a painful minute, when he had reached Bowser, he handed him a glass of lemonade. Bowser snatched it from him, and smashed his old glass in Mario's face. "Clean that up."

"What? You threw the damn glass at my face—" began Mario. Bowser hit Mario in the gut with the club that Mario had been using the other day. Mario doubled over in pain. "Fine…" he moaned. As he trudged along to go get the broom, a bell rang.

"Hey! My feet need rubbing!" yelled Roy.

"What?"

"You're the one who hit me in the head with a club."

"But—"

"Anymore backtalk and I'll hit you ten times harder next time," said Bowser.

"I want some more lemonade!" yelled Lemmy.

Mario groaned and walked towards Lemmy. Roy rang his bell. "What about my feet rubbing?"

"Can't I just—"

"You need to clean up this glass first!"

"But I can't—"

Mario's cell phone rang. He answered it. As soon as he put his ear up to the phone, he could hear the princess screaming from the other side. "Where's my money?! I told you you'd have to pay for this mess! You owe me FOUR MILLION COINS! You'd better give me it NOW!"

Bowser, Roy, Lemmy and Peach all yelled at Mario simultaneously. Mario covered his ears. "WHY CAN'T YOU JUST DO IT YOURSELF?" he finally yelled. He covered his mouth and looked up.

"Alright, that's it!" said Bowser. He stood up and walked towards Mario, holding the club in hand. "Don't worry—this'll only hurt a lot." He smiled devilishly and whacked Mario as hard as he could with the club.