World 3 Map (Super Mario 3D World)

"Does anyone hear something?" Marisa asked.

"I hear something." Mario said as they all looked to see a Bullet Bill Train in the distance, and then it sped past them.

"We got in a castle to watch a train?" Happy asked.

"Oh we're not going to watch it." Natsu said, looking at a cannon. "We're going to catch it!"

World 3-Train: High Speed Chaos!

The Bullet Bill Express (Super Mario 3D World)

They landed on the train, looking ahead. "Oh this is going to be interesting." Luigi said.

"No kidding." Meiling nodded as they started walking, as Kaguya managed to pick up a Green Star that she noticed.

"Hey Mokou...look what I got." Kaguya smirked, showing off the Green Star.

"Yeah yeah, I got tons of 'em. You really want to brag about that?" She asked as they kept walking.

That's it, I'm going to push her off of this train when I get the chance. Kaguya thought as they kept walking.

"How fast is this train going, exactly?" Reimu asked.

"It's a Bullet Bill Train, I imagine this is going pretty fast." Mario said as they kept on going, and then they saw another train parallel to them, but it was equipped with Bullet Bill blasters. "Uh oh..."

"Just when I thought this would be a pleasant voyage." Luigi sighed.

"Well, this just got a whole lot interesting." Marisa said as she fired danmaku at the Bullet Bills.

Sakuya took out her knives and threw them at the Bullet Bills, but they bounced off of them as they kept coming but Meiling got in the way and kicked them all away to the other train. "Thanks."

"Ah no problem." Meiling said.

Suddenly, there was an explosion as several Goombas went flying off the train as a Green Star smacked right into Mokou's face. "Ow!" She yelled as she pulled it off. "Well, I guess this one is mine."

"What was that explosion?" Lucy wondered as they looked to see a Banzai Bill Blaster aiming right at them. "Oh geez!"

"Leave it to me." Flandre said. "TABOO: LAVATEIN!" She yelled as she swung it at a Banzai Bill coming for them, as it exploded in mid-air but another one came right through the smoke really fast and hit Flandre.

"FLAN!" Remilia yelled.

"I'm fine..." Flandre winced.

Another Banzai Bill hit a train, as it destroyed several ? Blocks in the process as a Mega Mushroom popped out of one. "Hey Natsu! A Mega Mushroom!" Happy exclaimed.

"Oh baby, this is going to be sweet!" Natsu exclaimed as he ate the whole thing and grew giant.

"Holy crap! Was I THAT huge?!" Wendy exclaimed.

"Yeah, it was pretty wild." Gray said.

A Banzai Bill shot out and was aiming at the giant Natsu. "Oh no you don't!" He smirked as he fire punched it away, as it collided into the Banzai Bill Blaster and then exploded. "Time to make things REALLY interesting!" he exclaimed. "FIRE DRAGON'S BRILLIANT FLAME!" He yelled, throwing a humongous fireball at the train and then the whole thing exploded, causing a Green Star to go flying and landing in Mokou's face.

"Ow! Again?"

"I know Natsu sometimes goes overkill...BUT YOU GOTTA BE KIDDING ME!" Gray yelled.

Natsu looked ahead and just chuckled. "Is he seriously going to destroy this train?" Xion asked.

"FIRE DRAGON...ROAR!" He yelled.

"He is." Happy nodded.

"Hey uh, Bro?" A Fire Bro asked.

"Yeah?"

"You might want to take a look at this."

"Do I have to right this very second? I'm busy driving this train here!"

"I know, but look!"

"Oh what could be possibly more important that thi-HOLY CRAP!" He yelled and once the Roar hit, the locomotive exploded, forcing the train to screech to a halt, and then Natsu shrunk back to normal.

"And I thought my sister was crazy..." Remilia blinked.

"I'm not THAT bad!" Flandre exclaimed.

"Then explain that pink area you destroyed!" Peach told her.

"Uh...i'll get back to you on that."

"I swear, you are so crazy sometimes." Gray muttered as they walked to a warp pipe that rose from the ground from the destroyed train as they all hopped in while Nitori picked up a stamp.

"So, you guys have arrived." A voice said.

"Who said that?" Marisa asked.

"I did." Pom Pom landed in front of them.

"Who are you?" Reimu asked.

"I am Pom Pom." She replied and took out a shuriken. "Now enough talk, let's do this thing."

Pom Pom (Super Mario 3D World)

Sora, Roxas and Xion ran to Pom Pom and slashed her, but she immediately disappeared. "Wait, where'd she go?" Roxas asked.

"Right here." Pom Pom said as they looked to see three of them.

"What the heck?!" Natsu exclaimed.

"Ha ha! Which one is the real me?" She asked as the three of them attacked them with shurikens.

"Dang Katanas...if I can just reach..." Youmu muttered but then she got hit, the cat suit going away. "Now this is more like it." She said and slashed a clone, as it disappeared.

"Wrong!" Pom Pom taunted and then kicked her away.

"Night Lord: Dracula Cradle!" Remilia exclaimed, as Pom Pom yelled in pain.

"Impressive hit...but I'm not one to go down easily!" She exclaimed, disappearing again and then reappearing with more clones.

"Maybe this will clear things up!" Roxas exclaimed, using Zantetsuken, but they all jumped away and struck him with shurikens.

"ICE MAKE: HAMMER!" Gray yelled, hammering the right Pom Pom.

"Who the heck conjures up an ice hammer?!" Pom Pom exclaimed as she made more clones and they threw shurikens at everyone, but they all dodged.

"HEAVY RAIN: GREAT WAR BENEATH THE RIVER!" Nitori yelled, and suddenly the whole place rumbled...and a huge tidal wave came through the wall.

"HOLY CRAP!" Pom Pom yelled as the tidal wave washed her away. "I'LL BE BAAAAAAAAAAAACK!" She yelled before sinking in the water.

"Well that's one way to beat the clones." Marisa said as they walked out of the area as Marisa got on top of the flag pole and rescued the blue Sprixie Princess.

"Yay! Thanks for saving me!" She exclaimed. "And now, I will take you to the next area!" She smiled as she started building a clear pipe. "Alright, you're good to go! Oh and...there's this ice palace thing midway if you want to go check it out."

"Ice palace?" Gray asked. "Let's go check it out."

"I'd figure you'd say that." Lucy said as they went in the clear pipe and went straight to the palace.

"Hmm, this looks familiar..." Mario said as he was looking at it.

"Shall we go take a look?" Gray asked as he was already walking in.

"You're already walking in, sure..." Natsu said as they walked in.

World 3-Crystal Palace: The Crystal King's Return

Crystal Palace (Paper Mario)

"This whole place is so familiar...but I can't put my finger on it." Mario said as they walked around.

"Maybe you've been here before." Reimu said.

"It feels familiar but...I don't seem to recall being in this palace in the Sprixie Kingdom."

"Well, this ice is really awesome." Gray said as they kept walking around until they saw stairs.

"This all feels familiar, but where have I seen this before?" Mario kept wondering as they walked up the stairs.

Lucy looked at the staircase and then at Gray. "Hmm...hey FLUDD...is this really ice?"

"This is ice." FLUDD replied. "Ice crystals, to be exact."

"So this is an ice crystal palace? Well this is even more amazing." Gray said.

Ice crystal palace... crystal palace... Mario thought. I have a bad feeling about this.

"Mario? You look uneasy." Peach said. "You feeling okay?"

"Yeah, I am." He nodded as they got in the last room.

"You done admiring things, Gray?" Natsu asked.

"Yeah. I'm wondering who made this place, I'm already a huge fan of them."

"That would be me." A voice said as they looked to see a very familiar king appearing in front of them, as Mario's eyes widened.

Crystal King (Paper Mario)

"Crystal King!" Mario exclaimed.

"That's right, Mario...I am back."

"You know this guy?" Natsu asked.

"Yeah. I had to rescue a Star Spirit from this guy." He explained.

"Star Spirit?" Reimu asked, as Mario explained everything. "Ah."

"I may not have a lousy Star Spirit with me, but that doesn't mean I will have my revenge." Crystal King chuckled.

"Look around you, there's a lot of us and only one of you. This is going to be easy." Marisa smirked.

"I wouldn't be so cocky if I were you." Mario said. "I had a lot of trouble with this guy."

"Enough chatting. Let's begin." Crystal King said as everyone got in battle positions.

Freeze! (Paper Mario)

Mario and Luigi ran straight to the Crystal King and punched him, but he blocked them both and swung them to the side. "WATER SIGN: WATER CARPET!" Nitori yelled.

"Ice Bolt!" Crystal King exclaimed as it hit the danmaku and freezing it.

"What?!" Nitori exclaimed as the Ice King threw ice shards at her, as she yelled in pain.

"FIRE DRAGON IRON FIST!" Natsu yelled, but the Crystal King conjured up an ice shield to block his attack. "What the?!"

"Heheheh, unlike last time...I got stronger!" He exclaimed as he fired ice shards at Natsu.

"I hate to ask this, but what's his health? I remember Goombario telling me it was 70..." Mario muttered.

"According to my data...it's 150 now."

"What?!"

"150 my butt." Marisa said. "LOVE STORM: STARLIGHT TYPHOON!"

"HOLY RELIC: YIN-YANG DEMON GOD ORB!" Reimu yelled.

The Crystal King dodged it. "Let's even this out." He said. "MIST!" He yelled, as they all...minus Gray yelled in pain. "Oh? You didn't get hurt?"

"I'm not the one who gets bothered by the cold." Gray said. "ICE MAKE: SWORD!" He yelled as he then slashed Crystal King several times, but he blocked it with his shield.

"I must say, I'm impressed that you can keep up with me and that we're both evenly matched...however..." Crystal King kicked Gray away. "That doesn't mean we're both strong!" He exclaimed, firing an Ice Bolt at him, but he blocked with his own arms.

"SKY DRAGON WING ATTACK!" Wendy yelled, hitting the Crystal King.

"Ha! Pathetic!" He laughed and then fired an ice bolt right at Wendy, as she yelled in pain and then was frozen solid.

"WENDY!" Natsu yelled as his fists ignited. "Why I oughta..."

"Hesitation Sign: Sword of Binding Desires!" Youmu exclaimed while Meiling ran to him and punched and kicked him but he dodged every attack and then fired ice shards at them.

"TABOO: KAGOME, KAGOME!" Flandre yelled, but the Crystal King fired ice bolts at the danmaku.

"Hey Crystal King!" Mario exclaimed.

"Hmm?"

"Let's see if you handle..." His hands ignited. "THIS!" He yelled as he unleashed his Final Smash, but the Crystal King surrounded himself in a huge icy dome. "What?!"

"Impressive move, Mario...but it seems you have gotten weaker the last time we met." He said as he then noticed a frying pan heading right for him, but he ducked. "A frying pan?"

"TAKE THIS!" Peach yelled as she attacked him with a Golf Club and then her tennis racket.

"Hmph...that all you got?" He asked as he ice punched Peach away, then dodging Mokou's and Kaguya's attacks and fired more ice shards to push them away. "FREEZE!" He yelled, firing a barrage of icicles at the Keyblade Wielders and the Fairy Tail group.

"Man, this guy is annoying!" Natsu exclaimed.

"This is where I'll end things off." He said, as he summoned several ice bits as they all glowed. "Farewell." He chuckled as they fired a humongous ice laser at everyone.

"No!" Gray exclaimed as he ran towards the group, but suddenly something else blocked the attack much to Gray's surprise.

The laser stopped, only to see a shield in front of the Crystal King. "What?!"

"Good thing I got here just in time." A voice said as they uncovered their eyes.

"Erza!" Natsu exclaimed.

"But I don't understand...I thought you were at Sarasaland!" Lucy exclaimed.

"I was...until I decided to return home early. I then find out from Toadsworth that you guys went on an adventure in a clear pipe. Of course, I got a little jealous and decided to follow you." She explained.

"Well that explains a lot." Gray said.

"Now that you're here, we can kick this guy's butt together!" Reimu exclaimed.

"Save your energy, this king is mine." Erza said, switching out of her Adamantine Armor and into her Flight Armor.

"Ha! With an outfit like that? You must be joking." Crystal King chuckled, but suddenly Erza disappeared. "Huh?!"

"Right behind you." She said as she slashed Crystal King away as she then went to Purgatory Armor.

"That sword of yours won't work on my shield!" He exclaimed as he attempted to block Erza's attack, but his shield shattered as his eyes widened. "No!" He exclaimed as he got hit several times.

"One thing you should know...is that you should never underestimate me." Erza said as she ran straight to the Crystal King.

"Now I know you..." Crystal King said. "You're Fairy Tail's strongest member! Titania!" He exclaimed as Erza slashed through him, as he yelled in pain and then fell to the ground in defeat, disappearing as a Green Star appeared from where he was.

Crystal Palace

"I'll take that." Erza said as she took it. "Now, let's get going, shall we?" She asked as they nodded. "Oh...and before we go." She punched Wendy's ice prison, shattering it.

"Ugh..." Wendy shook her head. "Thanks." She smiled as they walked out of the palace.
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Originally, I was going to have Blizzarus from Super Princess Peach, but then I thought of the Crystal King. "Yeah, that'll be better!"

Also, I was originally going to have Erza appear at the end of World 4, but my desire to have her appear in the story was getting so bad that I just couldn't bear it any longer.