RWBY Lost World

(Before starting this story, I want to make a disclaimer: neither Sonic Lost World nor RWBY belong to me. Only the OCs that it includes belong to me. And also to thank GalaxyLight364 for inspiring me with their stories. This is after RWBY Colors.)

CHAPTER. 1: Old Friends and a Mission.

In the blue sky of Earth, a strange vehicle crosses it, carrying a kind of device. It was piloted by a man, but it wasn't just anyone, but one of the best-known (and most comical and absurd) villains in the entire Multiverse. He has blue glasses that he always wears and a couple more on his head, only that they are night vision. In what is his facial features, perhaps his main feature, is his long brown mustache, in addition to his long pink nose. He has no hair, so he is bald. His attire consists of a red jacket or jacket with yellow buttons and white vertical and horizontal lines in several parts and the sleeves are yellow. He is wearing black pants that almost completely covers his stomach. He wears white gloves. His shoes are long black boots with gray soles and gray laces. Two robots accompany him: one red capable of becoming a sphere and another yellow capable of becoming a cube.

They were Dr. Eggman and his two henchmen Cubot and Orbot, escaping from a group of heroes, two of them were in a red biplane, while the other four were in their own modified Extreme Gear. In the biplane there was an anthropomorphic hedgehog with blue fur that covers most of his body, peach skin that covers his arms, snout and torso, long black nose and emerald green eyes. It has six spikes on the head, two protruding from its back and a short tail. He wears two friction-resistant red sneakers, light, with white cuffs and a gold buckle, a pair of white gloves with cuffs similar to those of his shoes.

He was Sonic The Hedgehog, the fastest hedgehog in the world and one of the best-known heroes of all time, accompanied by his best friend Miles "Tails" Prower, an anthropomorphic fox with two tails of orange fur that covers the large part of his body with white hair on the snout with four mustaches on each side, torso and the tip of its tails, a three-dendritic bangle on its head and light blue eyes. He wears two red sneakers with the white toe and cuffs, a pair of white gloves with cuffs similar to those of his shoes and two black bracelets placed on the wrists of the gloves and anklets.

?: Drop the animals, Eggman!

A feminine voice and reveals a girl wearing a long-sleeved black dress with a high neck and red trim on the sleeves, on which there is a black waist with red laces in the front. The skirt of her dress has red trim and red lining. He also wears a pair of thick black socks and black combat boots with red laces, red trims around the top and red soles. His attire is crowned by a red hooded cape attached to his shoulders by cross-shaped pins. Its emblem appears as a large silver buckle on its wide black belt, which hangs around its angled hips. Tied to his belt is a bag and a row of bullets. She is Ruby Rose, the leader of the RWBY team at Beacon Academy and a friend of our blue hedgehog.

?: Moron! Do you seriously believe that this madman left the animals just by asking him? I really don't know how you are the leader.

Who has spoken so coldly wears a strapless dress to the thigh with a faint gradation of white to pale blue at the hem. A small piece of black lace is at the front of her neckline and the hem of the dress is scalloped and sewn to resemble snowflakes, with layers of white tulle under the skirt. On this, she wears a bell sleeve bolero with the same color gradation as her dress from shoulder to wrist, lined in red and with a ruffled neck. He also uses a small apple pendant on a silver chain and fine rectangular silver earrings. His boots are white, with wedge heels and higher in the back than in the front. They have a small silver decoration on the top of the foot and are lined in red. A thin white sash is tied around your waist with a bag attached to your back. She was known as Weiss Schnee, heir to the Schnee Dust Company, questioned for her way of treating her employees, although fortunately she is not like her father.

Sonic: You've heard the girls before, Egghead. Leave the little ones before you do foolishness.

?: And if you know what is best for you, you better leave and don't come back unless you want to end up "boiled".

?: Yang, this is not the time for horrible puns.

The last two members of the RWBY team were arriving at full speed. One of them wears a tan jacket that shows off her stomach, with gold trim and short, puffy sleeves with black cuffs that feature two gold buttons. Beneath this, she wears a low cut yellow crop top with her black left chest also wears a brown belt covered by a piece of pleated brown material that runs from hip to hip around the back of the waist, with his emblem stamped on the rightmost gold fold. Beneath this is a long, asymmetrical, white piece of material that reaches to her knee on the right side, as well as a pair of black mini shorts. She wears a pair of brown knee-high boots and orange over-the-knee socks, with the right sock pushed down just below the knee. A gray scarf is tied around her left knee. An infinity orange scarf and black fingerless gloves complete her outfit. The name of this girl is Yang Xiao Long, half sister of Ruby.

And the other girl wears a black buttoned vest with skirts and a single silver button down the front. Underneath is a white, sleeveless, high neck, crop top and white shorts with a zipper on the front of each leg, stamped with the YKK logo from the Japanese manufacturer of real life zippers. She also wears low-heeled black boots and full stockings with a black to purple gradation at the ankles. Her emblem is visible on the outside of both thighs just below her blank shorts. On his left arm is a separate black sleeve with a silver cuff around his biceps, and black ribbons are wrapped around both forearms. A small, black, loose scarf wraps around her neck, and a gray magnetic backpack is tied behind her back, hidden by her hair. He often keeps his weapon attached to the magnetic backpack when he is not using it. Two cat ears poke out of his head. She wears a Catseye-style purple eyeshadow. The last member was named Blake Belladonna, the only Faun on the team.

Hearing the group's voices, Eggman laughs, speeding up his vehicle. Suddenly he takes out a remote and presses the button, releasing the machine he was loading.

Dr. Eggman: If you insist ... Ha, ha, ha, ha!

Seeing this, Sonic and company prepare to intercept him.

Tails: Uhh, how's it going!

Ruby: Sonic, I'll take care of it!

Ruby uses her Semblance, "Petal Burst", allows her to dash with an inhuman speed in whatever direction she chooses, often leaving trails of rose petals in her wake to try to activate the door of the machine, but she goes by, just in time for her sister to catch her. They both give each other a knowing smile, while Sonic tries it too, without success, when the Tornado picks it up.

Tails: We're going to have to take another pass!

Sonic: Okay. Blake, Weiss, it's your turn!

Both: Yes!

Eggman's Eggmobile stops and watches them, smirking.

Eggman: How predictable.

Orbot: A lot!

Cubot: What will you see in those bugs?

Eggman badly pushes the two robots aside and pulls out a weapon, aiming at the Tornado. Shoot hitting squarely on the plane, also getting the Extreme Gears of Team RWBY to be damaged.

Sonic: It hit us!

Yang: Hold on tight!

Tails maneuvered the biplane as best as possible, while the girls held each other in different ways: Yang, holding on to one wing, Blake uses his weapon, Gambol Shroud, sticking the blade into the other wing and as for Ruby... The red-robed woman was barely grabbing her leg by her sister.

Weiss, on the other hand, was luckier: Sonic took his hand and was with him in the middle of the wings.

Sonic: Uuah, what is between the clouds?

Both Team RWBY and Sonic and Tails are amazed by the sight: a floating, incomplete and mysterious planet that floats on earth. They also saw, in the distance, some of their alien friends, the Wisp.

Weiss: This must be Lost Hex, it's ... Wow.

Tails: AWESOME!

Blake: Hey guys ... We better stop so much admiring and landing more.

Blake points to Ruby, who is getting very dizzy.

Yang: Hold on, little sister! Tails...

Tails: Don't worry, Yang. I can do it. But it will be moving!

The group of five heroes see ground and prepare for a hard landing.?

Sonic: Wooohao! Good landing. Are you OK?

Weiss: Come on. Was that a doubt?

Blake: More or less. Well, we still alive after all.

Yang: Ruby! Where are you!?

Ruby: Down here!

Ruby was literally under them, but she was standing without falling.

"Sonic Lost World- Windy Hill Zone 1 OST."

Ruby: This is AMAZING!

Weiss: Idiot! Be careful, we don't know what dangers there are ... and then there's this multi-gravity or whatever it's called!

Blake: We should go find those animals before Eggman finds them.

Yang cracks her knuckles, ready to fight.

Yang: Yes, I already want to make "starry egg."

The team moans at the pun, as they begin to advance down Windy Hill. Ruby cuts a group of Badnik with her Crescent Rose, freeing the imprisoned animals; Yang hits a group of Balded Spiners. Weiss and Blake destroy robots, and they dedicated themselves to put to the small beings of safety, at the same time that they caressed them in secret, since they had to maintain the "mature personality." Sonic makes way for his friends, when they see that part of the way begins to fall. Without wasting a second, the blue hedgehog grabs all four of his hands and begins to run, zig zagging avoiding the holes. Ruby and Yang were enjoying themselves as little girls, while Weiss and Blake were getting dizzy. Suddenly Ruby sees a Cyan Wisp and an idea occurs to her.

Ruby: Hello! I don't know if you know me or my friend Yacker, but we are the good ones. Have you seen a rare container around here?

The Wisp nods.

Ruby: Great! Could you tell us where it is, please?

The cyan being gets inside Crescent Rose and Ruby puts it as a propeller, firing a bullet, taking them all to the container. Sonic presses the button, releasing them all.

Yang: It was amazing, little sister!

Weiss: Don't ... do that ... again.

Blake: Please...

Sonic: Come on, Ice Queen. You need to relax and enjoy the moment. You too, Kitty.

Both girls plant their weapons in his face with a look of death. Sonic laughs shyly, while gesturing to reassure them.

Finally, our heroes manage to rest a bit before the next mission. Until Sonic's device and Team RWBY scrolls ring.

In Remnant...

Another group of six heroes was calming the spirits of people, Fauns and animals. It was Team JNPR, Knuckles The Equidna and Amy Rose, who had the mission of being a support for our heroes.

Knuckles: Come on, let's calm down.

Jaune: Take it easy, we're working on it, we'll rescue your friends.

Amy was helping Nora and Ren calm the humans and Fauns, when Pyrrha calls Ruby and company.

Amy: Let no one worry! Sonic will save them all.

Pyrrha: Ruby, Sonic, do you have good news?

Ruby: Um ... The good news is that we have saved animals. The bad news is that we have only been able to save the ones from the container that Eggman threw out of his Eggmobile.

All: What!?

Knuckles: Wait a minute! How? Only one? Ha ... How seedy! I would have saved them all already!

Nora: Yes, with many explosions and half of time!

Suddenly, the animals catch the pair of fighters and take them away.

Pyrrha: Save them, please. I don't even want to imagine what that man could do to them.

Sonic: Don't worry. Leave it to us!

Once the news is reported, Team RWBY and Sonic relax before continuing their investigation.

Sonic: Here, catch.

Sonic throws each a bottle of water.

Blake: Thanks.

Yang: Man, can you believe that we have been assigned a mission from another world and above with a couple of great friends like these two?

Weiss: If by "mission" you mean head into a chase with little information and a mad scientist as a target, yes, it's a mission. But in the second part...

Weiss smiles, sincerely happy.

Weiss: ... you're right.

Sonic: I knew you would like it with time.

Weiss: Don't get too used to it.

Blake: What I find curious is that Professor Ozpin has assigned us this mission while we are still learning.

Ruby: Now that you say it ... didn't you notice that man before we got there?

The four students began to remember what their report for the mission was like, not knowing that someone, neither human nor Faun, was watching them.

TO BE CONTINUE...