This first chapter is sort of a reworked version of how Mario got to Isle Delfino. Also, I don't own Mario.
Mario, Peach, and Toadsworth were walking through Isle Delfino. Mario had come to this tropical island for a vacation. So far, for the first five minutes, everything had been going well.

"So this is Isle Delfino," said Mario, looking around at the odd villagers, who all looked like oversized fruits. "Nice place. Very...tropical."

Toadsworth noticed some clouds. "Oddly, this place seems rather dark for a place being advertized as sunny."

"Yes, but everything here is so nice!" insisted Princess Peach. "The trees are so colorful! The aromas are so nice! The..."

Mario suddenly found himself being dragged away by a pair of policemen. "The people here aren't very welcoming!" he remarked.

"Mario! Horrors!" cried Toadsworth as Mario was thrown into the plaza's courthouse. "What shall we do?"

"Let's follow them!" suggested Toad. The three of them ran inside. Mario was sitting in front of a judge in a dark room, surrounded by a jury of the islands inhabitants, Piantas and Nokis. Piantas were large and colorful with little trees growing out of their heads. Nokis looked like little people living in seashells.

"Mario!" thundered the judge. "You have been vandalizing our island!"

Mario stared. "Me?"

"Not only that," continued the judge, "but you have stolen our shines, the source of the island's light!"

"Prove it! I didn't do any of that!

The judge held up a little TV, which played a video of Mario running around, pushing people and things over. At least, it looked like Mario. This person appeared to be made of liquid with glowing red eyes.

"There's proof!" snapped the judge. "You've trashed this island, and you are not allowed to leave until you clean it up and return our shines!"

Mario sadly sat on a bed at his beach house, wondering what was going on. How was he supposed to clean up the whole island? A small machine flew in the window. It looked like a water pump, but with various other buttons and straps.

"I am FLUDD," it croaked, "and I have been sent to help you by Professor E. Gadd. He knows you're innocent."

Mario picked it up. "Well, judging by how things have been going, I don't find this weird at all!"

"I can squirt water, go fast with my turbo nozzle, or rocket you anywhere you want," informed FLUDD.

"Well, I need you to clean this place for me."

"Let's start."

Mario and FLUDD were soon spraying mud away by the entrance to Corona Mountain, the island's huge volcano. As he was cleaning, Mario noticed a thing peering out at him. "Hey, there's someone in there!"

The creature turned away and ran deep inside. Mario started after it, but a gate came down, locking Mario out. "What was that?"

"I detect an evil presence," said FLUDD.

Mario peered inside. "If there's something evil here, I have to find it! It could be the reason I'm stuck cleaning all this mess away."

"I cannot find a way inside," said FLUDD. "For now, we should stick to cleaning up messes. That's fun, after all...right?"

"Uh...yeah."

Mario heard screaming from below. Mario looked down into the plaza. There, the fake Mario that had gotten him in trouble was running around, holding Peach. "MARIO!"

"She's gotten kidnaped already?" complained Mario.

"It's the imposter!" cried FLUDD.

"That's Shadow Mario to you!" called the villain.

Mario jumped down from the ledge he was on. "Well, Shadow Mario, never mess with the real thing!"

Mario sprayed Shadow Mario down with a blast of water from FLUDD. The figure turned into Bowser Jr.

"It's a Koopaling!" gasped Mario. "One of Bowser's kids!"

FLUDD stared at the small reptile that lay before him. "I've heard about Koopas! Isn't Bowser their king and your sworn enemy?"

"That's him."

The Koopa sat up. "Fine, fine, my real name's Bowser Jr and you're not gonna catch me!"

Jr ran for it. The gates at Corona Mountain opened up and he made it inside. They closed before Mario can get in. "Darn it! He's the cause of all this! How can I catch him? Wait, every volcano has an obvious entrance! Through the top opening! FLUDD, you said you could rocket me! Do it now!"

FLUDD did nothing. "I am programmed to protect you, Mario. I cannot let you go through with this."

"If you're not gonna help, I'll do it myself!" Mario jumped up and began climbing the volcano. Eventually, he managed to get about halfway there. He was just sitting down for a break when FLUDD flew up after him.

"I thought it out and decided it was more dangerous for you to climb a volcano without any help," explained the water pump as Mario rocketed himself up to the top. "However, we may regret this..."

Mario dropped into the volcano, landing right in front of Bowser Koopa. "Hello, plumber."

"Bowser!"

"Yeah," he smiled, "I was planning on killing you later, but as long as you're here..."

Bowser roared and clawed at Mario, who quickly rolled out of the way. Mario ran down a tunnel deeper into the volcano.

"You can't hide in there!" Bowser yelled after him."

"We are in trouble!" squawked FLUDD as Mario ran down the rocky path. "We are in trouble!"

"I know!" Mario reached a dead end at a pit of lava. Bowser approached behind him. "Now you know why it's called a 'dead' end!"

Mario started to back away. "You and your awful jokes won't get me!"

"What are you gonna do, huh?" smiled Bowser, showing his row of teeth.

FLUDD used his hover nozzle to drift Mario over the lava. "How's this one, Bowser? I am quite useful!"

Bowser shook his claw as he watched Mario drift away. "You haven't escaped yet, Mario! You don't know your way out of this place!"

Landing, Mario ran right into Bowser Jr. "And you forgot about me!"

The seven other Koopalings jumped in. "Not them, too!" cried Mario.

Ludwig Von Koopa laughed evilly. "Well, Mario, it looks like the end for you!"

Mario sighed. "Honestly, it does. I'm outnumbered and lost."

There was an awkward pause. Finally, Larry Koopa spoke. "Wow, and here I thought he'd put up a fight. No one's ever agreed with us. It's really interesting."

"We need a convenient way out of here!" Mario whispered to FLUDD. "What do we do?"

"Run while they're distracted!" Mario runs past the Koopas, who were all still lost in deep thought.

"This is too weird," said Roy.

"Why," remarked Ludwig, "I almost feel like a new person."

Bowser had just arrived and saw what had happened. "You...ARE ALL IDIOTS!"

"I'm not an idiot!" cried Jr. "I'll help!" Jr changed into his Shadow Mario form and chased after Mario. Bowser followed.

Wendy Koopa grumbled to herself. "He is such an overachiever."

Mario ran through the plaza being chased. All the villagers noticed (as it was pretty hard to miss). "Hey, there are two Marios!"

The Judge looked nervous. "Uh-oh..."

Jr turned back into his normal Koopa form. "We've been found out!"

Bowser growled. "Doesn't matter. I've been found out tons of times. Let's just kill Mario and run."

Mario stood proudly. "Not so fast, Bowser! These people know they've been had and I'm sure they're about to help revolt against your evil power!" Nothing happened. A few Nokis hide in their shells. Mario shuffled awkwardly. "Maybe this wasn't the best vacation."

Toad grabbed FLUDD. "Don't worry, Mario! You still have your water pum-AAAAAAAHHHHH!" Toad sprayed it the wrong way, sending him flying into the ocean. He landed on a much smaller island in the ocean where a Pianta sat. "Who are you?" asked Toad.

"They call me Castaway. I've been stuck on this island for a while now. Sometimes I get off, but I always manage to get back."

Toad sat down under the island's one tree. "Well, I guess I'm with you. Hey, here comes Mario!"

Mario was zooming across the ocean using FLUDD's turbo. "Hey, Toad," he smiled. "I thought I'd save you, to procrastinate my battle with Bowser."

"I'm really touched, but was it a good idea to leave the island with Bowser on the loose?"

Mario laughed. "What can he do in ten seconds?" Mario turned around, only to see the entire island sinking in the Koopas' thick brown goop. "The island! They've trashed it! AGAIN!"

Mario grabbed Toad and Castaway and headed back for the plaza. He pulled a dazed villager out of the mud.

"Hey, Mario," said the Pianta, "sorry about the whole arrest you thing."

"Where's Peach?"

"Well, the Koopas are flying away with her right now."

Mario looked up. The Koopas were escaping in a huge Doomship, their huge airship.

"To the airport!" cried Mario, taking off running. He jumped into a small plane with Toad and Castaway and flew after the Doomship. "Toad, take the wheel! Who's the Pianta, anyway?"

"Castaway? He won't stop following me."

Castaway was very excited. "You guys are so cute! Like little plush toys!"

Mario jumpped off the plane onto the Doomship. Peach was struggling, tied to the mast. "Mario! I knew you'd come!"

"Where are the Koopas?"

"Where we always are!" came Bowser's voice. "Right behind you."

"I really should turn around sooner."

The Koopas all started attacking Mario at once. Toad watched from the plane. "Oh no! They've caught Mario!"

Castaway began to steer. "I'll prove my usefulness by getting an idea!" The Pianta started ramming the Doomship with the little plane. "What good is this doing?" asked Toad.

"Every ship has a weak spot!" Castaway hit the ship in the right place and it began to plummet rapidly.

Bowser looked down at the ocean, which was coming very close. "What's going on?"

"We're going down!" screamed Mario. Everyone freaked out and started running around in a frenzy.

"Jump!" ordered Peach. Mario untied her and everyone jumped off the Doomship, which landed in the ocean. The huge splash it made drenched the island, cleaning it entirely. Mario swam to the goop-free surface with his friends. "We did it!" realized Mario. He pulled something out. In a glowing jar...was all the shines!

"Yes," agreed Peach, "the islanders owe a lot to you!"

"You haven't seen the last of me!" said Bowser.

"Or us!" added the Koopalings. On that, they rushed back to the volcano.

Toad looked around. "Where did Castaway go?"

Mario gazed across the ocean. "Uh...he landed on the island he came from in the first place."

"Happens," called Castaway.

The Judge approached the hero. "Mario, for the fact that you were framed, and for cleaning the island despite that, you are free to go."

Mario laughed. "But I'm still here on vacation! And with the Koopas around, you really need me. I'm staying!" Everyone cheered.

That night, a party was thrown on Gelato Beach. There was a lovely moon, and everyone was celebrating. Toad and Mario were taking a break, leaning on the railing of the juice bar.

"I still can't believe we cleaned all of Isle Delfino!" said Toad.

Mario took a drink from his tropical cup (complete with umbrella). "All thanks to uncreative writing!"

Lemmy Koopa walked by with a fake plant on his head. "Look at me! I'm a Pianta!" Seconds later, he found himself tossed into the ocean. Iggy Koopa swam by dressed in shells. "So I guess my Noki disguise won't work..."