Me: This is my first crossover! I wrote this one a while ago and I'm just now publishing it. Sorry for any typos, I was to lazy to go through and edit.

Leo: and LeoFan does not own TMNT.

Kai: *walks in* or Ninjago.

Me: Thanks guys. Please R&R! And check out Leo's blog, hamato/leonardo./wordpress./com (slashes aren't in link)

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Late at night on the rooftop of Mr. Murikami's Noodle Shop in New York City, Leonardo, Raphael, Donatello, and Michelangelo were battling the Purple Dragons, a street gang who regularly bothered Mr. Murikami about giving them money. The four Turtles had first battled them when their friend April had asked them to accompany her to his shop and they had walked in on the gang beating up the blind noodle man. They forced the Dragons out and Mr. Murikami became their friend. This time they had battled the Dragons up to the rooftop. Here, the Turtles had an advantage. While the Dragons were familiar with the streets, the Turtles were familiar with the rooftops. When the Dragons' leader, Sid, had been defeated, he ordered the Dragons off the roof. He shouted his best insult. The one he always used.
"This ain't over Greenie!" Sid shouted as they left by means of the fire escape. Donnie turned to Raph.
"'Ain't' isn't a word and 'Greenie' is the worst insult ever. It's not even an insult!" Donnie fumed. Raph rolled his eyes. The four brothers went down into the store to see if the old shop owner was okay. Fortunetly, nothing had happened to him.
"Thank you very much. Would you like some Pizza Gyoza?" Mr. Murikami asked the Turtles. Leo, Raph, Donnie, and Mikey looked at each other.
"Are you kidding? YES PLEASE!" The brothers shouted in unison. After a lot of the pizza stuffed dumplings, the Turtles got up to leave.
"Thanks, Murikami-san!" Leo said, speaking for himself as well as his brothers.
"Your welcome, Turtle-San!" Said Mr. Murikami. The noodle man had known the brothers were mutant turtles ever since they had rescued him from the evil Xever. The man was very grateful to the four for saving his life and he frankly didn't care that some of his very best friends and customers were giant walking, talking, reptile martial artists. The Turtles walked out of the shop toward the Shellraiser, parked around the side alley. As they climbed into their seats Donnie's tPhone started going off. Donnie checked the phone.
"Uh oh. Leo! Head for TCRI! The Kraang are up to no good!" He shouted. The Shellraiser swung out of the alley and headed for TCRI.
-Meanwhile in the land of Ninjago-
"NINJAGO!" Kai spun into a fiery red tornado and headed toward the row of skeletons in front of him. Nuckal, who was supposed to be leading the skeletons into battle screamed and ran.
"What are you doing you numb skull? I give you a chance to lead us into battle and you run away! Why, I otta-AHH!" Kruncha followed Nuckal as did at least twenty more skeletons. An electric blue tornado spun to a stop next to Kai as he came to a standstill.
"Well that evens the odds, doesn't it?" Jay said looking at the four remaining skeletons. An icy white tornado stopped spinning next to Jay.
"It might have even destroyed them!" Said the robotic Nindroid, Zane. A tornado of spinning soil slowed and stood next to him.
"Whadda ya say we intimidate 'em a little? You know a little fun?" Cole asked. Jay nodded.
"Fire!" Kai shouted. He spun into his fiery tornado.
"Earth!" Cole shouted, starting an earth colored tornado.
"Ice!" Zane shouted. An icy tornado appeared.
"Lightning!" shouted Jay, spinning his tornado into the other three. A giant cyclone formed from the four combined elements. The skeletons stood shaking as the giant tornado split back into four and they stood still. A giant, soily replica of Ultra Dragon, Lloyd's dragon stood before them. The skeletons followed the rest of the army screaming. Even though the earthy clone wasn't alive, the very image of Ultra Dragon was enough to scare anyone. Even beings from the underworld. The four ninjas laughed and started heading back toward the Destiny's Bounty. As they set up their favorite video game, Kai's sister, Nya, ran into the room.
"The Fangpyre have been spotted in Ninjago city!" She said. "Zane's falcon spotted them!"
"Well, I guess no video games right now guys." Said Cole. He started to put away the video game but Lloyd came into the room and took the controller. He sat down and started to play. Cole started forward, but Sensei Wu stepped into the room and stopped him.
"Let him play for right now. He's been training nonstop since last night." the Sensei said. Cole nodded and went into the other room. The flying ship soared toward Ninjago City.
-Back in NYC-
"BOOYAKASHA!" Mikey shouted as he knocked a Kraang droid into the wall. The droid smashed into the wall and landed in several pieces. It's alien brain occupant jumped out squealing. Leo sliced through two droids at once and Raph stabbed one through the head. Donnie whacked three with a wide swing from his bo-staff.
"Kraang, summon the one known as Tragg to come to this place and destroy those known as the Turtles." A Kraang droid said. The Turtles looked at each other as the 16 foot-tall rock-man came into the room.
"I hate that rock." said Raph as they got ready to attack. The Turtles slowly were backed up onto the portal. The Kraang surrounded them.
"Kraang, activate what is known as the portal now." Said a Kraang droid. Donnie looked down.
"Guys! Run! Now!" He shouted. The Turtles started to jump over walls of Kraang, but the portal activated and the Turtles were caught in it's beam. With a flash of light, the four brothers disappeared.
-In Ninjago City-
"All right!" Jay yelled as he spun through a group of Fangpyres. The red and white serpentine fell to the ground. Fangtom ordered them to regroup and the snakes started heading toward Kai, Jay, Cole, Zane and Lloyd.
"Guys? Got any ideas?" Kai asked. Then the five ninjas noticed that the snakes were staring behind them. The Fangpyre turned and ran. The five glanced at each other and looked behind them just in time to see a portal opening. The ninjas stared in surprise as four turtles fell through the portal. The orange one sat up and looked at his feet.
"AAHH!" Stubby! Joey Nails! Two of the triplets! TWO! What happened to my toes?" The Turtle looked at his hands. "My fingers! They're gone!" The blue one sat up and looked at him.
"It had something to do with the Kraang zapping us through the portal!" he said. "I'm gonna call April and see if she get Master Splinter and come down here. Donnie," he said looking at the purple one. "On second thought, you can text her. You'll be able to explain what happened and tell her how to get here better than me." The one he called "Donnie" nodded and took out a shell shaped phone.
"What the heck is a Kraang?" asked Jay.
"No idea, but it doesn't sound like a good guy. But...those guys don't seem to be a threat. Blue seems to be the leader. I'll go talk to him." said Cole. Cole stepped forward as the one in red got up and started yelling at Blue.
"You and your stupid plans! If you had never sneak attacked them, the Kraang would be toast by now, and so would that stupid rock! And we would be home! But nooo! We had to sneak attack them! And now look at us! We're no better off than before! Look at my sais!" He held up a pair of sais that looked as if they had once been shiny but had been dulled.
"Um, sorry to interrupt your 'friendly' conversation guys, but we're here!" A girl in a yellow football jersey jumped through the portal followed by a giant rat.
"April!" Donnie said running to her. "You okay?" April nodded and looked at the orange one.
"Mikey, what are you doing?" she asked. Mikey was sticking his hand in and out of the portal.
"Fingers, no fingers. Fingers, no fingers. Fingers, no fingers." he said.
"Ok buddy. Put 'em up." Red said.
"Raph, who are you talking t-" Blue turned around. He unsheathed his swords. "Ok. We don't want any trouble. You just tell us who you are and what's goin' on and you'll be ok. If not, watch your back." Blue stood posed to attack along with Raph, Donnie and Mikey.
"Hey. Easy dude. We aren't gonna hurt ya or anything. My name's Cole. I lead this bunch of ninjas over here." Cole said motioning to the other four. "The red one's Kai, the white one's Zane, the green one is Lloyd and the blue one's Jay." Cole let his hood down. The blue Turtle put away his swords.
"You let down your guard to quickly, Leonardo. Take out your swords." The rat said.
"Hai Sensei." Leonardo said. He stepped forward holding up his twin katanas.
"I'm Leonardo. But you can call me Leo. I lead my brothers and our best friend April. That's Raph, Donnie, Mikey and over there's April. And this is Master Splinter, our Sensei." Leo pointed to each one in turn and stood next to Master Splinter. "Could you answer a question for us?" Leo asked.
"Sure. Go ahead." said Kai, coming to stand next to Cole.
"Where are we?" asked Leo. The four Turtles, April and Splinter looked around the city.
-In the Shredder's evil lair-
Karai! Summon the Kraang!" Shredder ordered. The kunoichi nodded and went to the other room and appeared a moment later with a Kraang droid.
"What does the one known as the Shredder wish to have from Kraang?" The droid asked.
"Information. What is your report about the Turtles?" Shredder asked the droid.
"The ones known as the Turtles are no longer in this place. They are in the place which is known as not in this place. They are in another place far from this place and other places, one known as Shredder." The Kraang said. "In the time unit which is later rather than sooner the one known as Splinter and the one known as April O'Neil followed them through what is known as the portal."
"What? When?" Shredder demanded.
"In the time unit known as 15 minutes ago, one called Shredder." The Kraang reported.
"Have you closed the portal?" Asked Shredder.
"No." Replied the Kraang.
"Well don't just stand there! Close it!" Shredder ordered. The Kraang droid turned.
"Wait." Shredder whispered. The droid stopped. "Monitor them and let me know when they leave." he commanded the droid. The Kraang nodded and then left the room. Shredder turned to Karai.
"Karai, gather together an army of footbots. I plan to follow the Turtles and Hamato Yoshi through the portal and destroy them myself." He said.
"Yes father." Karai replied, and also left the room.
"I will now finish what I started so long ago." Shredder laughed evilly.
-Ninjago City-
"You are in Ninjago City." Said Zane.
"What's that?" Raph asked. Then he noticed a man with a white beard and a girl in red driving up on a motorbike. "And who are they?"
"We might ask the same of you, young turtles." Said the bearded man.
"Leonardo, this is Sensei Wu and Nya. Sensei Wu and Nya, this is Leonardo. I'll let him finish the intros." Jay said, gesturing to Leo that he should start talking.
"Well, you can just call me Leo. This is Raphael, Donatello, and Michelangelo. but you can just call them Raph, Donnie, and Mikey. This is April and this is Master Splinter, our Sensei." Leo said, putting away his swords at a nod from Master Splinter.
"Pleased to meet you Leonardo. What brings you here?" Asked Sensei Wu.
"Well, actually the Kraang-" Leo started, but Jay interrupted.
"Yeah about that. What is a Kraang?" Jay asked.
"It is rude to interrupt Jay. Especially a visitor." Sensei Wu said.
"Sorry." Jay said quickly. "But about this Kraang?"
"If we told you, we'd have to kill you." Said Raph crossing his arms. Then he looked around and leaned forward. "You see, the Kraang are aliens from another dimension." Raph said.
"Raph!" Leo said, elbowing him. "Anyway, the Kraang zapped us here using their portal. Which is that thing over there." Leo motioned to the portal. "And those two robots guarding it are Kraang droids. The Kraang are inside."
"Why do they need those robot suits?" Kai asked.
"They're actually alien brains. So they kinda need help getting around." Donnie explained.
"Their technology is even more complex than mine!" Zane stated.
"Your...technology? What do you mean?" Donnie asked.
"Zane's a Nindroid." Jay said simply.
"We'll explain later." said Lloyd.
"One more question. Mikey, who are Stubby and Joey Nails?" Cole asked. Leo, Raph, and Donnie glanced at each other as a maniacal smile formed on Mikey's face.
"Those are my toes." Mikey grinned.
"Your...toes?" Zane asked.
"Yeah. I named all six of 'em." Mikey said. "There's Stubby and Joey Nails, and-"
"Yeah that's nice." Jay said.
"And, my other three are the stinky triplets." Mikey smiled.
"Ok, glad we got that sorted out. Let's head back to the Bounty." Said Kai.
"What's that?" asked Donnie.
"Um...we'll just show you." Said Jay.
"Should I call our ride?" Lloyd asked.
"Go ahead." Said Cole.
"Heeerrree Dragon!" Lloyd called.
"Wait. Dragon?" Donnie said. "Those don't actually exist! Do they?"
"They do here." said Nya. Just then the giant four headed figure of Ultra Dragon appeared. The Turtles stared with their mouths open. The giant pale dragon landed.
"Whoa! Sweet ride dudes!" Mikey said. They all climbed on the dragon's back with the exception of Sensei Wu and Nya who got back onto the motorbike. They all headed out of the city. After they left, Shredder stepped through the portal, and about 200 footbots followed. Then the portal closed. Shredder's gaze followed the dragon and the motorbike. Then he ordered the footbots to follow him and they followed the Turtles and the ninjas.
Later, the five ninjas, Sensei Wu and Nya brought their guests into the guest bedroom aboard the bounty. They had earlier given them the tour and the four brothers were still slightly in shock. Sensei Wu took Master Splinter downstairs to discuss training methods over a cup of tea. Nya took April to the other guest bedroom. Zane turned to Donnie after they left.
"Earlier, you questioned my technology?" He asked. Donnie nodded. Zane reached down to his torso and flipped open a door.
"Whoa!" Said the four brothers, staring.
"Dude! Your a robot!" Said Mikey.
"Hey hey hey! A Nindroid!" Jay corrected him. "I came up with that, so that's what it is!"
"Dude, you name stuff to? So do I! Besides my toes I mean...Donnie made a turtle robot and I named him Metalhead! Because he has a head and its made of metal! And he turned an old subway car into the Shellraiser..." Mikey's voice trailed off as he and Jay walked down the hall. Leo looked at Raph who shrugged and they both looked over at Donnie who had bent down to study Zane's robotics.
"This technology! It's so rare! Do you know how rare it is? Someone might find this technology say...about every 11 years?" Donnie estimated.
"10.8 exactly." Said Zane.
"Whoa! I love Nindroids!" Donnie continued to gawk over the various gears. Kai tapped Raph and Leo on the shoulders.
"Why don't you guys, Cole and I go train a little? You know...compare ourselves and our abilities?" Kai asked.
"Yeah!" said Leo at the same time Raph and Cole said "No!" Leo stared at Cole.
"Huh. A leader who doesn't like practice and training." Leo raised his eyebrow.
"Not everything happens like in your stupid Space Heroes show Leo." Raph said grinning and slapping Cole some green.
"Well, me and Leo'll go then." Said Kai motioning for Leo to follow him. As they entered the training room Leo's jaw dropped.
"Wow! This is gonna be great for training!" Leo said enthusiastically. He watched in awe as Kai flipped, jumped, and swung around the course. He came to a stop at the end and said
"NINJAGO!" And spun into a fiery tornado. Leo applauded wildly and his eyes boggled. Kai spun to a stop and took a bow.
"What is that? How did you do it? Whoa!" Leo went nuts.
"It's called Spinjitzu. It's a certain method of training..first you have to master this course..." Kai explained as Leo listened attentively.

TBC...

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Me: hope you enjoyed! Updates should be fairly frequent, cuz I already have all of this part written,

Leo: this part?

Kai: It's a trilogy. She told me.

Me: yes it is. And also, just a side note. I have not seen any of Ninjago Rebooted. I have only seen through season 2. Remember, reviews are always welcome!