This is my first MXLS x NBC crossover fanfiction and I know it's not Halloween, but I just feel like it. Plus, it's gonna be a musical fanfiction, so... Enjoy! But before we begin, it's time for the disclaimer. I do not own anything except for Josie and Candy, my OCs in Halloween Town form and FlipNix the Green Nixel, my Nixel OC. Also...

Flain: Mixels is owned by LEGO, Cartoon Network, David P. Smith and John Fang.

Flamzer: The Mixels Theme Song and the Calling All Mixels Soundtrack are also owned by David P. Smith and John Fang.

Zorch: The Nightmare Before Christmas and it's sequel, Oogie's Revenge are owned by Tim Burton. (pulls his trademark laugh) Go, NBC!

Burnard: All of the songs in The Nightmare Before Christmas and Oogie's Revenge are owned by Danny Elfman. (laughs)

Meltus: Other songs that are not from NBC or Mixels belong to their rightful owners. (sneezes)

Vulk: And the costumes for the Series 1-4 Mixels, that's us, were all PogorikiFan10's idea.

Me: Thank you, Vulk.

Vulk: :D

Meltus: Is it time to wear Halloween costumes yet?

Flamzer: Not yet, Meltus

Summary: A crossover between Mixels and Nightmare Before Christmas. It's Halloween in Mixel Land and the Mixels are having their annual Halloween Fright Festival. But when the Mixels became maxed and turned into monsters of the costumes they are wearing, the Infernites and their Infernite cousins have to escape and ended up in Halloween Town where they meet Jack Skellington and many other faces. But when Halloween Town is nixed, the six Infernites must team up with the Pumpkin King to save both Mixel Land and Halloween Town before it's too late.

Mixels and Nightmare Before Christmas

This is Max-oween

Chapter 1: Oogie Meets Nixels

[Background music: This is Halloween (Kingdom Hearts 1.5 Remix)]

In a holiday world of horror called Halloween Town, it was filled anything that is Halloween-related and is ruled Skellington Jack the Pumpkin King. Two figures are walking through Spiral Hill on the Halloween Town pumpkin patch, wearing backpacks. One of them is a white-skinned dead girl with red hair, normally Burtonized eyes with small black pupils, black eyeshadow, black tears, black lips, a black smile tattoo on her mouth, a black heart tattoo on her right arm, black horns, a skull hairpin, white cat ears, a black mask, a black hairbow, white claws, black shirtless sleeves, a black dress with a white belt, a skull brooch on her dress, a black choker with a skull on it, white leggings, black boots, two white cat tails and white angel wings and her backpack is black; she's Josie Haunterra, a Phantom Goddess, the Chief of Halloween Town and sidekick of Jack Skellington.

The other one was a ghost with a square-head, light blue skin, a white wedding dress with a white wedding veil and chains, a tiara resembling Sailor Moon's tiara, except her's is sky blue with a baby blue pearl, long light rainbow hair and blue (right) and pink (left) cartoon eyes with light blue pupils and her backpack is white; she's Candy Rainbowgeist, a ghost girl, a decision maker and Josie's imaginary friend.

Candy: "Okay, this looks like the perfect place to pitch our tent."

Josie: (worried) "Uh, I didn't bring a tent. Sorry, Candy."

[No music]

A DJ scratch sound effect was heard off-screen as the music stopped.

Candy: (shocked) "You didn't bring a tent?! On a camping trip?! AT THE PUMPKIN PATCH?!" (scolding at Josie) "Then what did you bring anyway?" (worried) "Sleeping bags?"

Josie: (sweatdrops) "Nope."

Candy: "Moist towels? Board games?"

Josie: (disappointingly waving her hand) "No way."

Candy: "Cookies and brownies? Cakes? S'mores? Ice cream? Marshmallows? SWEET CANDY?!"

Josie: (brings her sweets stash in a bored tone; sweatdrops) "Exactly..." (enthusiastic) "I also brought a pair of flashlights, a magic wand and..."

[Background music: This is Halloween (Kingdom Hearts 1.5 Remix)] continues

Josie: (hoists up a giant pumpkin with a scary face carved on it) "...A JACK-O-LANTERN!"

Candy: (swipes the Jack-o-lantern; scolding) "Gimme that pumpkin." (places it on the ground)

Josie: "Then we'll have a cozy camp-o-lantern in no time for the sake of Halloween Town."

Candy: (glares at Josie) "Hmm. Well if that's how you handle a camp-o-lantern, you've got a lot to learn about camping!"

Later, the camp-o-lantern is set up and giving a warm yellow/orange glow. Josie has a brownie on her wand and is holding it around the camp-o-lantern and Candy is stacking marshmallows onto a stick from the cooler near her.

Candy: (sighs) "Nothing like a warm camp-o-lantern on a starry night! Eh, Josie?"

Josie: (pulling the brownie off of the stick) "Alright, this brownie is almost warm, but..." (eats the brownie; her wand sets off a green laser into the sky, making the duo notice; sweatdrops) "Oops."

Candy: "Ya moron! Don't you know you shouldn't play with magic? You could start a magic accident!" (puts on a ranger hat with a bat on it; to the viewers) "Now remember, readers..." (pulls down a panel that says "First Safety", points to words with stick as soon as she says them) "Safety First!"

Josie: "Don't worry about it, Candy. I can handle it."

[No music]

Suddenly, a green mist surrounds them.

Candy: "What an unusual fog we're having."

[Background music: Spooks of Halloween Town (Kingdom Hearts 1.5 Remix)]

Without warning, a shadow popped out behind them as the two noticed it and screamed in horror while they backed away. An evil laughter was heard off-screen as the two looked around.

Candy: (scolding at Josie) "Josie, what are we gonna do?! If Jack Skellington gets word of this, he's gonna blow his top! Do something before..." (calm tone) "...despite that I'm a ghost..." (scolding tone) "...we meet our untimely demise! You wanna get yourself killed?!"

Deep voice (off-screen): "Well well well, isn't this a bad time for a camping trip."

The two heard the familiar voice from behind and were frozen in shock and horror. They had also felt a green aura from the source of the voice. As the duo turned around, they saw... Oogie Boogie!

Josie and Candy: (shocked/horrified) "OOGIE BOOGIE?!"

Oogie: (laughs evily) "I feel like a million bugs again. Now that I'm back, I can finally take over Halloween Town once and for all!"

Josie: (scolding in fear) "You'll never get away with this, Oogie!"

Oogie: "But it was your accident that brought me back to life, Josie."

Candy glares at Josie for what she did.

Josie: (sweatdrops) "Uh-oh."

Candy: (glaring at Oogie) "You wanna take over Halloween Town..." (summons a violent white aura around her) "...you'll have to get through US!" (to Josie) "Josie, I need you to find a door to a world that is too dark and colorless for Oogie. We have to find a way to get him out of Halloween Town. You find a door, I'll stop Oogie Boogie."

Josie: (summons her sword and salutes) "Yes, ma'am." (leaves off-screen to find a door)

Candy: (calling to Josie) "Hurry back!"

Oogie: "Ha! You think you and your creator are tough enough to beat me? Besides, your friend caused the accident and you're already dead, so must be DOUBLE DEAD!" (charges at Candy)

Candy sweatdrops and dodges Oogie's attack. Meanwhile, Josie is looking in the woods for a door that Candy told her to find so that they can banish Oogie in. She looks around the woods as she kept searching. Cut back to Candy brawling with Oogie. The scene splitscreens to Josie still searching until she saw something.

Josie: (smiles) "Ah!" (runs back; to Oogie; mocking tone) "Hey, Oogie!" (blows a raspberry and runs off-screen)

Oogie: (noticing) "WHAT?!" (angry) "Nobody makes a sap out of me!"

Candy followed Josie as they both ran to the woods with an angry Oogie chasing them. The two ran towards a black tree with a white circle door with a black thumbs down symbol on it. And on that door is a black doorknob.

Candy: (to Josie) "Are you sure this is a door?"

Josie: "Of course."

Oogie was about to attack as he let out a battle cry, but as Josie opened the door, Oogie fell through the door as he screamed off-screen. Josie and Candy slammed the door as they breathed heavily in relief.

[No music]

Josie: (referring to Oogie) "It's the last time we'll be ever seeing him again. The nerve of that jerk." (rolls her eyes)

[Background music: This is Halloween (Kingdom Hearts 1.5 Remix)] continues

Candy: "Boy, you've got a lot to learn about camping!"

Josie laughs sheepishly as she sweatdrops. Then she sighs sadly.

Josie: "At least Jack won't know what happened. Let's keep this between us, okay, Candy?"

Candy: "Fine. How bad can it be?" (she and Josie leave off-screen)

[No music]

Meanwhile in a strange world of black and white filled with colorless, dark and uncreative creatures, the place has a monochromatic appearance which is seen with a black floor, which sometimes resembles a floor with tiles, but with random shades of grey used as their color. It has a black and white colored, striped wall with the same symbol as the door from Halloween Town at the top. The land usually looks like a fully white location; it is called Nixel Land and the colorless uncool black and white creatures are called Nixels, the tiny and adorable villains that like to cause mischief and ruin creativity.

Right now, they horrified of the one holiday of the year on the night of October 31st that they tried to nix, but either failed or are too terrified to ruin it. Yes, that day is called Halloween. Every year, they worry that if their leader, Major Nixel, his soldier, FlipNix and/or their ruler, King Nixel finds out that Halloween is almost here, there would be a huge mondo disaster for the Nixels, so this year, they decided to nix Halloween by stealing treats.

Nixel #1: "Candy! Nix! Nix!"

Nixel #2: "Treats! Treats! Treats!"

Nixel #3: "Nix! Nix, nix NIX!"

Nixel #4: "Halloween..." (blows a raspberry) "Candy..." (laughs and licks its lips)

Nixel #2: (annoyed) "Seriously?"

[Background music: Spooks of Halloween Town (Kingdom Hearts 1.5 Remix)] continue

Just then, they heard an unfamiliar voice.

Voice (off-screen): (angry tone) "NOBODY BANISHES MR. OOGIE BOOGIE TO ANOTHER WORLD AND GETS AWAY WITH IT!"

The Nixels screamed in terror as they heard the voice. Some of the Nixels thought it was King Nixel while others thought it was Major Nixel. So, they panicked. A Nixel in a pointy-eared mint green exoskeleton with yellow eyes, a green beret with the Nixels symbol, green gloves, green shoes and a dog tag necklace came in; he's FlipNix.

FlipNix: (scolding) "What is going on around here?! I'll tell either Major Nixel or King Nixel about your bickering!"

The terrified Nixels were terrified, making FlipNix sweatdrop in disgust. Just then, he noticed an upset Oogie Boogie coming.

[No music]

FlipNix: "Calm down, Nixels. It's just a giant living burlap sack."

Nixels: "Huh?"

Oogie: (heard what FlipNix said) "Hey, I heard that, you-"

[Background music: This is Halloween (Kingdom Hearts 1.5 Remix)] continues

Oogie: (sees FlipNix and the Nixels) "Well well well, what have we here? Nixels!"

This made the Nixels gasp.

FlipNix: (confused) "How did you-"

Oogie: "I read it in a science book once, Green Nixel, rarest of its species."

FlipNix: (confused) "You think I'm rare?"

Nixels: "Ohhh!"

Oogie: "And this must be Nixel Land, is it?"

This made the Nixels nod.

Oogie: (sighs; scolding) "Because that phantom goddess of a chief and her imaginary dead friend banished me from Halloween Town, I guess I need your help."

FlipNix: (curious) "Halloween Town is real?"

Oogie: "That's right! And so is my enemy, Jack Skellington, the Pumpkin King, along with his friends a.k.a. my other enemies, Josie Haunterra, a phantom goddess and the chief of Halloween Town and Candy Rainbowgeist, the dead friend of the chief."

FlipNix: "The Pumpkin King and the Phantom Goddess are real too? So this means..." (realizes something) "Tomorrow is Halloween!"

Nixels: (shocked/puzzled) "NIX?!"

Oogie: "Really?"

FlipNix: "Exactly, since I know that the Nixels are too scared to nix Halloween by stealing treats like every year. At least I'm the only Nixel who knows about Halloween."

The Nixels gasped in shock of what FlipNix had said.

Nixel (off-screen): (annoyed tone) "Seriously?"

FlipNix: (to the Nixels) "Relax, I was spying. Lucky for us, our leader, Major Nixel and our king, King Nixel, doesn't know about Halloween, so I'm not gonna tell them."

The Nixels sighed in relief.

Oogie: "So, um-" (puzzled)

FlipNix: "FlipNix the Green Nixel, soldier of the Nixel army. And you are?"

Oogie: "My name is Mr. Oogie Boogie the Boogeyman."

FlipNix: "The Boogeyman? No way! You were awesome scaring Mixels!"

Oogie: (confused) "Mixels? What are Mixels?"

FlipNix: (scolding tone) "Our enemies! They are colorful, despite that I am green, creative and they think that they're much cuter than us! All they do is use stupid cubits to mix, max and..." (snickers) "...murp. Besides, stealing cubits is what we do best. Anyway, every year on the night of October 31st a.k.a. Halloween night, the Mixels celebrate their annual Halloween Fright Festival. Some Mixels trick-or-treat while other Mixels put out scary attractions to scare trick-or-treaters for fun and to scare the other Nixels for vengeance for trying to steals their cubits and their treats. Now I may be afraid of ghosts and failure, but I'm not afraid of Halloween. So, this year, we're gonna nix Halloween by turning all of the Mixels into hideous monsters as we take over Halloween Town while you take over Mixel Land. Deal?"

Oogie: "Impressive. You've got yourself a deal, FlipNix." (shakes FlipNix's claw) "On one condition..."

FlipNix and Nixels: "Huh?"

Oogie: "Does anyone know how to build a casino?" (brings out his casino kit and gambling tools from his old casino back in Halloween Town)

Nixel (off-screen): "Seriously?"

FlipNix: (sighs) "Don't worry. I'm a gambler and I know how to build a casino. I build my own secret casino once, so I'll make a casino lair for you, Mr. Oogie Boogie." (whispers to the Nixels) "You guys are helping me too by the way."

Nixels: (shocked) "NIX?!"

Oogie: "Perfect! Now we have a deal!"

FlipNix: "Thank you, Oogie. You know, if Major Nixel finds out that Halloween is tomorrow, he's gonna kill me. You think he won't notice?"

Oogie: "Please, he won't know at all. At least he doesn't know about Halloween. And speaking of Halloween..."

[Song: Be Prepared (The Lion King); performed by Oogie Boogie, FlipNix and the Nixels]

Just then, Oogie picked up FlipNix and looked him straight in the eyes, making him sweatdrop in worry.

Oogie: I never thought nixel essential

They're crude and unspeakably plain

But maybe they've a glimmer of potential

If allied to my vision and brain

Oogie places FlipNix to the ground and came towards three Nixels and a Muscle Nixel as they saluted.

I know that your powers of retention

Are as wet as the rain outside

But thick as you are, pay attention!

My words are a matter of pride

Oogie kicks a Nixel by accident as he stepped on another Nixel's foot, making it let out a Wilhelm scream.

It's clear from your vacant expressions

The lights are not all on upstairs

But we're talking kings and successions

Even you can't be caught unawares!

As he kept singing, the Nixels saluted at what he said.

So, prepare for the chance of a lifetime

Be prepared for sensational news

A shining, new era

Is tiptoeing nearer

FlipNix: And where do we feature?

Oogie: Just listen to teacher

I know it sounds sordid

But you'll be rewarded

When at last, I am given my dues

And injustice frighteningly squared

Oogie and Nixels: Be prepared!

Then, FlipNix and the Nixels began building the casino for Oogie.

FlipNix: (confident) "Yeah, be prepared! We'll be prepared!" (confused) "For what?"

Oogie: "For taking over Halloween Town!"

FlipNix: "And Mixel Land too?"

Oogie: "Right! We're going to turn these colorful Mixels into monsters, remember?"

FlipNix: (happy) "Great idea! Who needs a leader?" (realizes) "Oh yeah..." (sweatdrops) "You."

Oogie: "That's right. And there will be a king. A new king of Halloween Town!"

FlipNix: "Who would that be?"

Oogie: "You will be king! Stick with me, and you'll never worry about Halloween again!"

FlipNix: (agreeing) "Yeah! Long live me, FlipNix, the new King of Halloween Town!"

Nixels: "Long live the king! Long live the king!"

Nixels: Nix, nix, nix, nix, nix, nix!

It's great that we'll soon be connected

With a king who'll be all time adored

Oogie: Of course, with pro quo, you're expected

To take certain duties on board

The future is littered with prizes

And though I'm the main addressee

The point that I must emphasize is

You won't have a chance without me!

At "chance", Oogie roled the dice as three of the Nixels dodged.

FlipNix: So prepare for the scariest night of the year

Be prepared for the murkiest scam (Nixels: Oooh... la, la, la!)

Meticulous planning (Nixels: We'll have food!)

Tenacity spanning (Nixels: Lots of food!)

A night of denial (Nixels: We repeat!)

Is simply why I'll (Nixels: Endless treats!)

Be king, undisputed

Respected, saluted

And seen, for the wonder I am

Yes, my evil and ambitions are bared

Oogie and FlipNix: Be prepared!

Oogie, FlipNix and Nixels: Yes, our evil and ambitions are bared!

Be prepared!

What FlipNix, the other Nixels and Oogie didn't notice are the hidden security cameras around the area.

[Background music: Haunted Instrumental (Evanescence)]

Meanwhile in a dark shadowy room, two evil silhouettes (one of them is gigantic) with glowing white eyes were spying on FlipNix, the other Nixels and their new leader, Oogie as they heard every single word of what FlipNix and Oogie said.

Silhouette: (glared) "So, the Mixels are celebrating their annual Halloween Fright Festival on the night of October 31st and that the legendary Halloween Town is real, eh?"

Gigantic silhouette: (glared angrily and growled)

Silhouette: (to the gigantic silhouette) "Calm yourself, King Nixel. Once all those miserable Mixels are turned into hideous monsters, we will be the ones to nix Halloween for good so that I will take over Halloween Town FOREVER!" (laughs evily)

King Nixel's Silhouette: (growled and scolded to the other silhouette) "Major!"

Major Nixel's Silhouette: (sweatdrops sheepishly) "I mean 'we', sir."

King Nixel's Silhouette: (growled)

Major Nixel's Silhouette: "You're right, sir. If we're going to rule Halloween Town, we gotta get rid of the Pumpkin King, Jack Skellington and his sidekick, the Phantom Goddess, Josie Haunterra. And it looks like this Mr. Oogie Boogie fellow can use some help taking over Mixel Land."

[Background music: Dream Meltic Halloween instrumental (Vocaloid)]

CAST;

OCs:

Josie Haunterra - voiced by Selena Gomez

Candy Rainbowgeist - voiced by Tracey Moore

FlipNix the Green Nixel - voiced by E.G. Daily

Nightmare Before Christmas:

Jack Skellington (mentioned)

Oogie Boogie - voiced by Ken Page

Mixels:

Nixels - voiced by Fred Tatasciore

Mixels (mentioned)

Major Nixel (silhouette) - voiced by Fred Tatasciore/Rodger Bumpass

King Nixel (silhouette) - voiced by Phil Hayes

Author's Note: Well, that ends the first chapter. You will see chapter 2 soon.

FlipNix: (enters with a chainsaw) PogorikiFan10, I'm here to-

Candy (Halloween Town): (materialized; glaring at FlipNix) Don't even think about it, green one!

FlipNix: (screamed in horror when he saw Candy and ran away)

Josie (Halloween Town): Any more bright ideas?

Jack: Well, the next chapter will feature the Infernites and the Infernite cousins.

All Infernites: Yay!

Me: Okay, make sure to read and review. No flaming or trolling or else there's gonna be trouble.

Candy (Halloween Town), Josie (Halloween Town), Jack and Flain: (sweatdrop) Big trouble...