Hello, everyone! PHANTOMKNIGHTMARE47 here, with the third chapter of Kamen Rider Nebula. In this chapter, Nakashima and co. arrive in the universe of Teenage Mutant Ninja Turtles, where they meet Leo, Donnie, Raph and Mikey, as well as their allies, Master Splinter, April O'Neil, Casey Jones, Leatherhead, and Slash. However, a new Darkmare appears to terrorize the denizens of Manhattan, and Hun, the leader of the Purple Dragons, is given a Dopant GaiaMemory he bought from the black market. Luckily, Nakashima's GridCards for his primary form's sword and gun weapons are combined to form a new weapon, the Nebula GunSlasher. And they get help in the form of Shotaro Hidari and Phllip, AKA the two-in-one Kamen Rider himself, Kamen Rider Double! Will Nakashima/Nebula and co. be able to save NYC from destruction? Find out in this newest chapter of Kamen Rider Nebula!

Disclaimer: Same as last chapter.

I own nothing else. Read, review, and no flames!

It cuts to Nakashima onboard the Novachaser waking up, and he walked to the kitchen after using the bathroom, and he looked to see Asuka making French toast for everyone's breakfast.

"Mornin', handsome." said Asuka, smiling at her boyfriend. Nakashima smiled and blushed.

"Oh shoot!" he yelped, remembering when he and Asuka had sex last night. "I didn't wear a condom!"

"Don't worry, sugar-pie. I'm on birth control." said Asuka, reassuring Nakashima that he didn't get her pregnant.

"Oh. Thank goodness." said Nakashima, sighing in relief.

"Alright, everyone. Our next stop is the universe of Teenage Mutant Ninja Turtles." said Raymond. "So, after breakfast, time to strap in."

After everyone finished their breakfast, they strapped in, and the Novachaser flew through a dimensional rift.

(Cue: "The Howl Towards Tomorrow" by JAM Project)

[Instrumental] It cuts to the various Kamen Riders of the Showa Era from Ichigo to BLACK RX, to the Heisei era from Kuuga to Zi-O, and then to the Reiwa-era with Zero-One, Saber, Revice, and Geats, and it shows Nakashima

[Tachiagare kedakaku mae sadame wo uketa senshi yo] It shows Nakashima sitting on a hill with some of his friends, and then he gets to his feet.

[Sen no kakugo mi ni matoi kimi yo ooshiku habatake!] Nakashima then extends a hand to the skies, and appears to be grabbing ahold of the moon, and the logo for Kamen Rider Nebula appears

[Yami no jidai wo tsugeru kane ga tooku nari hibiku] It shows Nakashima in his college apartment relaxing with his friends, and then it shows Nakashima looking at a childhood photo of him with his parents prior to their deaths.

[Tatakau tomo yo ima kimi ha shi mo osorezu] It shows the members of AMPS, such as Commander Raymond Fielding III, Professor Jeremiah Broslowski, Dr. Martin Hendrickson, Field Commander Ryuji Katsuragi, and Lieutenant Asuka Shimada.

[Gareki no machi wo somete shizumu yuuhi ha kurenai] It shows the Giganoidians, which were composed of the warlord, Giganidas, the swordsman, Zankord, the general, Kenvardon, the assassin, Xalderion, the the jester, Jyrax.

[Aisuru hoshi no mirai wo mamoru tame] It shows Nakashima's allies in his travels throughout the Multiverse, such as the Members of WOOHP, Tom Kullersen, Shane Vancel, Danny Phantom, Tsukune Aono, Ichigo Kurosaki, the Maximals, Edward Elric, Team Sonic, the Paris Miraculous Team, Ruby's Group, the TMNT, Yuichi Usagi, the Justice League, the Avengers, Cal Kestis, Fairy Tail, the Hellsing Organization, Steven Universe, Jonathan Joestar, Yugo Ogami, Dante, and others to name a few.

[Oo kami no yaiba ha hito no ai inori wo komete tsuranuke] It shows the people of Winter Bluffs being tormented by the Zomborgs, and Nakashima arrives on the scene, and does the same movements Kotaro Minami does, before saying "Ectophase Activate!", and he transforms into Rider Form

[Tachiagare kedakaku mae sadame wo uketa senshi yo] Nebula then faces off against the Zomborgs, before he slides a Grid-Card over the top of his belt, and his Nebula Gunslasher appears, and he slashes and slices through several Zomborgs, before switching to it's gun mode, and shooting the other Zomborgs

[Asu no heiwa he no ishizue to nare] Sonic, alongside Chris Thorndyke, Shintaro the Shark, Corey the Tiger, Yutaro the Panther, Brad the Maned Wolf, Noah the White Lion, Sam Manson, Cyo the Lion, and Noire the Lioness become the new Saber Riders, armed with the ten Elemental Seiken, whereas the Paris Miraculous team enter superhero form, with Nolan Anderson transforming into Night Bat, using the Bat Miraculous.

[Atsuku nare ookiku sake ten ni sasageshi inochi yo] Nebula is fighting in a sword duel against Zankord, who had become the new Kamen Rider Falchion, and is dual-wielding his own sword with Mumeiken Kyomu

[Yowakimono no tate to nare soshite sekai wo michibike] Nebula does his Rider Kick on a monster, destroying it in one hit, and he drives off on his motorcycle.

(End of OP)

Chapter 3: Mutant Warriors of Manhattan!

Location: Manhattan, New York City

The Universe of Teenage Mutant Ninja Turtles

The Novachaser then made a landing, where Nakashima exited the craft with Clover, Sam, Alex, Ayame, and Nagato.

"So, this is Manhattan, in the TMNT Universe." said Clover, examining the area. "It looks awesome."

"Ditto." said Alex, amazed by the sights. Suddenly, a group of ninjas arrived, brandishing swords.

"Crap!" said Nakashima, as he entered a fighting stance with the others. Suddenly, the ninjas were dispatched by four humanoid box-turtles.

The first mutant box-turtle had emerald-green skin, and sapphire blue eyes. He wore a blue ninja mask over his eyes. Sheathed on his back were dual katana swords.

The second mutant box-turtle had tea-green skin, and reddish-brown eyes. He wore a purple ninja-mask over his eyes, and brandished a bo-staff.

The third mutant box-turtle had kelly-green skin, and emerald green eyes. He wore a red ninja mask over his eyes, and had dual sai on his belt.

The fourth mutant box-turtle had light-green skin, and baby blue eyes. He wore an orange ninja mask over his eyes, and had two pairs of nunchucks on his belt.

"It's Ninja Time!" said the blue-masked turtle, as he and the others helped Nakashima and co. in fighting against the ninjas. The ninjas then made an escape using a smoke-bomb.

"You guys alright?" said the blue-masked turtle

"Yeah." said Nakashima, nodding in confirmation. "I wonder if you're some kind of kappas."

"No, we're not kappa, actually." said the turtle in purple. "We're box-turtles mutated by an unknown substance, and taught in the art of the ninja."

"What he said." said the blue-masked turtle. "My name is Leonardo. The one in purple is Donatello, the one in red is Raphael, and the one in orange is Michelangelo."

"Hello there." said Donnie.

"Yo." said Raph

"Hiya." said Mikey.

Meanwhile, we see the Giganoidians on the Nightmare Fortress, where we see Giganidas and his forces, facing a Darkmare that resembled a cross between a Japanese giant hornet and a tiger.

"Behold, Hornetora!" said Jyrax, introducing his new monster. "It fires needle stingers that cause extreme pain to the victim!"

"Excellent." said Giganidas, tenting his hands together.

Later, it shows two of Nakashima's Grid-Cards, one showing the picture of the Stellar-Slasher and one showing a gun weapon glowing, before they merged into a new weapon-based Grid Card.

"This is….new." said Jeremy. "A form-changing gunblade weapon?"

Meanwhile, it cuts to Hun, the leader of the Purple Dragons receiving a bony USB flash drive like object.

"Now I can truly smash those turtles into green jello!" said Hun, sneering.

[ARSINOITHERIUM]

Meanwhile, a young man in a suit wearing a fedora with another young man arrived via a portal. These were Shotaro Hidari and Raito Sonozaki, AKA Philip. They were the two-in-one Kamen Rider known as Kamen Rider Double.

"So, this is the US." said Philip, taking in the sights of NYC.

"You said it, aibou." said Shotaro. "And someone sold the leader of the Purple Dragons, a man named Hun, a Dopant Memory from the black market."

"It's gonna be up to us to stop him." said Philip. The two then headed into the city, where they were in Chinatown.

"Hey, that's the two-in-one Kamen Rider, Shotaro Hidari and Philip, AKA Kamen Rider Double!" said Nakashima.

"That's right." said Shotaro, smiling a little. Suddenly, they saw some people running, and they saw what appeared to be a Dopant. He looked like a cross between Metalgelas and an Arsino Magia.

"RUN, RUN, RUN, AS FAST AS YOU CAN!" said the Dopant.

"Is that HUN?" said April, an ally to Leo, Mikey, Donnie and Raph. April was a news reporter who wore yellow clothing, and had red hair and blue eyes.

"The Purple Dragons' leader." said Shotaro.

"Come, Fang!" said Phillip, as a mechanical dinosaur arrived, and Philip converted it into a GaiaMemory

[FANG!]

Philip strapped on the DoubleDriver, while another DoubleDriver appeared on Shotaro's waist, and he took out a black GaiaMemory

[JOKER!]

"Henshin!" said Phillip and Shotaro, as Shotaro inserted the Joker Memory into the left slot, and he slumped to the ground, with his soul transferred to Philip, who inserted the Fang GaiaMemory into the DoubleDriver, and spread it open by folding the Fang Memory down

[FANG! JOKER!]

(BGM: "Wild Fang" by Jeanne da Arc Plays)

Phillip then was then clad in armor, with the right half being white with a black line, and the left being black with a purple line which then turned jagged. He then fought against the transformed Hun.

"Bring it on, Kamen Washout!" said Hun, as the Arsinoitherium Dopant, as he and Double traded blows. Double then moved the Fang Memory's horn once.

[ARM FANG!]

A fang-like blade appeared on Double's wrist, and he slashed at the Arsinoitherium Dopant, landing some slash marks on his body. Double then moved the Fang Memory's horn twice.

{SHOULDER FANG!]

A curved fang-like blade appeared on Double's shoulder, and he threw it, with it arcing numerous times as it slashed the Arsinoitherium Dopant.

"You're pissing me off, ya two-in-one shithead!" said the Arsinoitherium Dopant, as he then charged at Double. The two-in-one Kamen Rider then moved the Fang Memory's horn three times.

[FANG: MAXIMUM DRIVE!]

A crescent fang blade appeared on Double's right ankle, and he jumped while doing a flying roundhouse kick. "Fang Strizer!" he exclaimed, as his attack connected, severing the Dopant's horn.

"What the fuck!?" the Arsinoitherium Dopant yelped, as Double defeated him. The Arsinoitherium Memory then landed on the ground and shattered, as Hun collapsed.

"Case closed." said Double.

Meanwhile, it cuts to Nakashima in his car Rider Machine, the Galaxy Prowler, as he then saw Hornetora.

"You're the little runt who's causing lord Giganidas problems." said Hornetora.

"Yeah, well your master is going down hard, just like you." said Nakashima. He then did the same movements as Kotaro Minami's pre-transformation poses as BLACK RX and BLACK, as his belt, the NebulaRiser appeared.

[HENSHIN]

"Ectophase Activate!" said Nakashima, as he was bathed in a bright light. His armor resembled Kamen Rider Revi Lion Genome and Revi White Leo Genome, but colored blue and white like Ryukendo. His helmet resembled Revi Lion Genome crossed with Kamen Rider Horan, with a silver forehead piece that had a blue gem in the middle. His gloves had clawed fingertips, and his optics were golden yellow.

"I am the child of the stars, Kamen Rider Nebula!" said Nebula, as he posed. He then took out the new GridCard, and slid it across the top of his belt.

[NEBULA GUNSLASHER, EQUIP ON!]

With that, the new weapon appeared in Nebula's hand. It resembled a cross between the Drive-Defenders from Power Rangers Operation Overdrive, and the WizarSwordGun from Kamen Rider Wizard, minus the Hand Author. He then folded the blade back, and bent the handle down.

[GUN MODE!]

Hornetora snapped his fingers, and some Zomborgs appeared. Nebula fought the Zomborgs using both martial arts and the Gunslasher in gun form, shooting them. He then straightened the handle and the blade folded out

[SWORD MODE!]

Nebula then slashed and sliced at the Zomborgs, before he then fought Hornetora. He then slashed off Hornetora's wings

"YOU LITTLE BITCH!" said Hornetora, snarling "You're going to suffer, you know that? You and your friends are gonna suffer, and you are going to die! The only way you're leaving New York is in a coffin!"

(BGM: "Shine On" by ANTHEM plays)

"That's never gonna happen!" said Nebula, as he turned the Nebula Gunslasher into it's gun mode, and slid the Thunder and Inferno System Grid-Cards against the top, scanning them

[THUNDER! INFERNO!]

"Burning Storm Blast!" said Nebula, as he shot Hornetora with a fire-and-lightning infused Rider Shooting finisher.

"DAMN YOOOOOOUUUUU!" Hornetora screamed as he then exploded.

"Game Over!" said Nebula, as he snapped his fingers. He then went back to his car, and drove off to meet with his friends.

Meanwhile, it cuts to Giganidas having seen the whole fight, and he was aggravated.

"UGGGGGGGGGGGGHHHHHHHHHHHH!" the Giganoidian warlord groaned, frustrated. "GIVE ME A BIG FAT GODDAMNED BREAK!"

Later, it shows the Turtles, April, Casey, Splinter, Leatherhead and Slash boarding the Novastreaker.

"I never knew there would be other dimensions aside from ours." said Mikey.

"There is such a thing as the Multiverse Theory." said Donnie, as he then explained. "The multiverse is a hypothetical group of multiple universes. Together, these universes comprise everything that exists: the entirety of space, time, matter, energy, information, and the physical laws and constants that describe them."

"Wut?" said Mikey.

"Basically, there are other worlds aside from ours." said Donnie.

"Ah, okay." said Mikey.

"Our next dimensional stop is the universe of Star Wars." said Raymond, as the group boarded the craft, and after everyone got onboard, the Novastreaker took off.

Elsewhere, Shredder and his forces had boarded the Nightmare Forces, and tailed our heroes to their next destination.

(End of Chapter 3)

(Cue Ending Song: "JUST COMMUNICATION" by Two-Mix)

It cuts to Nebula, riding his motorcycle on a racetrack during a cloudy day.

JUST WILD BEAT COMMUNICATION

Ame ni utarenagara

Iroasenai atsui omoi karadajuu de tsutaetai yo

TONIGHT!

Nureta sono kata wo atatameru you ni daita

Furueteru yubisaki wa nani wo motomesama you no?

Togiretogirete mo tsutaete hoshii itami wo

Sameta furisuru koto de otona ni nante narenai

Anata no manazashi mamoritai

Kanashimi tsuyosa ni kaeru ai wo shinjite

JUST WILD BEAT COMMUNICATION

Nani mo osorenaide

Kanjiaeru tashikana ima dare nimo ubaenaikara

JUST WILD BEAT COMMUNICATION

Ame ni utarenagara

Iroasenai atsui omoi karadajuu de tsutaetai yo

TONIGHT!

(End of ED)

Next time, on Kamen Rider Nebula, Nakashima and co. arrive at the Star Wars universe, where they learn that the galaxy had gone to literal Hell, due to the Emperor of the Sith, Sheev Palpatine, AKA Darth Sidious, turning the Galactic Republic into a Galactic Empire, and causing the Clone Troopers to turn against their Jedi generals. With the Jedi all but extinct, the galaxy was trapped in a near-endless era of fear. However, Nakashima and co. meet some freedom fighters, with some of them being survivors of the Great Jedi Purge and the Siege of Mandalore. But, when a new slew of Imperial Inquisitors arrive, along with a plant-based Darkmare, it's up to Nakashima and co. to stop them, and Nakashima gains a fiery new form to combat this monster. Next time, Chapter 4: The Galaxy's Mightiest Heroes!