(Here's my newest chapter where the Dazzlings get in on the action.)

At the Shredder's base one night, down in the training hall. Shredder and his mutant henchmen sat/stood in a box seat. Karai stood in the training arena below before Shredder called down to her.

"Karai, show them in."

Karai nodded, as she pulled a lever, and a gate raised up. Stepping out from the dark and into the light were the Dazzlings who were wearing ninja garment just like Karai's.

Shredder got up from his seat and looked down at his three new minions, "All right, you three. This is where you put your ninja skills to the test."

"Yes, Master Shredder." The three acknowledged.

Shredder motioned to Karai who nodded and pulled another lever. Another gate opened and walking out onto the arena were multiple Foot Bots.

"You will fight the Foot Bots until you have defeated them all. Do you understand?" The bladed ninja asked.

"Yes, Master." the three answered.

Bebop nudged Rocksteady, "Hey, Baby Ivan. What's say to a little bet? Five dollars if the Foot Bots win?"

"Shame on you, Comrade!" Rocksteady scolded him, "Betting is a bad-bad thing... Make it ten for I bet on Dazzling girls."

"You're on!" Bebop replied, as the two shook on it.

"Begin!" Karai announced.

The Dazzlings took off, as did the Foot Bots. The trio had put all their ninja training under the guidance of Karai. Adagio dodged a punch from one Foot Bot and delivered a spin kick sending it stumbling back. Aria ducked a kick from one of the Bots, before delivering a kick of her own to the one leg it was standing on making it fall. Sonata was dodging strikes from two Bots before grabbing one and used it as a shield when the other made a strike.

The Foot Bots made their extra set of limbs that were equipped with blades. Sonata looked nervous, before Adagio spoke, "Girls, weapons!"

Sonata whipped out two Tonfa, Aria pulled out a Tribaton, Adagio unsheathed a Kusanagi sword.

"Remember what you've learned." Karai instructed.

The three nodded, and resumed fighting the Foot Bots. Adagio dashed around and used her Kusanagi to slice the robots up. Sonata was using her Tonfa to block the Foot Bots strikes before striking back as well. Aria used her Tribaton to swat the Foot Bots around before wrapping it around the head of one. She tugged the two ended pieces that crossed and off popped the robot's head.

Up in the box seat, Shredder and his mutants watch with amusement at the Dazzlings performance. The trio sliced, diced, and crushed all the Foot Bots leaving nothing but pieces of them littered on the arena floor.

The three Dazzlings stood side by side, before putting the weapons back and bowed their heads. Rahzar and Fishface applauded on their performance, while Rocksteady laughed as Bebop was forced to cough up his gambled money.

Shredder got up and jumped down onto the arena, landing before the three. The trio looked at Shredder and awaited his words.

"You three have done well," The Dazzlings looked up at Shredder with looks of joy, until he continued, "But your real test has yet to be done."

"We'll do whatever you ask of us, Master Shredder." Adagio promised.

"So what do you want us to do?" Sonata inquired.

"Go with Karai and seek out The Rainboom Girls. And bring them to me," Shredder instructed, "With them we can lure the turtles out of hiding. I trust you can do that?"

"Leave it to us, boss." Aria answered.

"Then get going." The Dazzlings nodded, as they left the arena with Karai.

---

Out in the city, the Rainbooms were coming out of the movie theater, with Rainbow Dash looking super excited.

"Wasn't that the coolest movie ever?!"

"It was pretty exciting." Sunset admitted.

"I thought it was scary." Fluttershy shivered.

"How would you know?" Rainbow asked, "You spent the half of the movie covering your eyes."

"But I could still hear it." the shy girl noted.

"Come on, yall. We best get on back to the hotel for some shut eye." Applejack suggested. Everyone agreed and started walking back.

As they walked, Karai and the Dazzlings were watching from a rooftop, "There they are." Karai began.

"Those girls are gonna be in for such a surprise when they see what we can do now." Adagio said in a sinister tone.

"That's assuming this all works." Aria reminded her.

Adagio turned to her pessimistic partner, "We can't let the Shredder down. Either we do it or bust."

"And I don't want it to be bust." Sonata shook in fear.

"Keep it down. We want to make this ambush count." Karai silenced them.

---

As the girls continued walking down the empty street, Spike sniffed the air and growled, "Spike?" Twilight asked.

"We got trouble."

The girls were concerned, until dropping into the middle of the street was Karai, "Nice night we're having, isn't it?"

"Karai?" the girls gasped.

"Well, tonight just got interesting." Rainbow smirked, as the girls drew their weapons.

"You have no idea, Rainbow Dash." Karai replied smugly.

"You don't surprise us, Karai." Sunset warned her.

"Oh, I don't? Well, how's this for a surprise?"

Suddenly landing at Karai's side were the Dazzlings. Their appearances startled the Rainbooms who were lost at words.

"It's the Dazzlings!" Pinkie shrieked.

"Surprise, girls." Adagio said with a sinister grin.

"How've you guys been?" Sonata asked cheerfully, while her comrades eyed her.

"We've been better." Rarity replied.

"So you did follow us here." Twilight accused.

"Guilty." Adagio confessed.

"But you should learn not to speak so loud," Aria continued, "Otherwise someone might hear."

"Like we did. Sorry if that makes us stalkers. Personally, I don't like that." Sonata rambled.

"Sonata, focus!" Karai ordered, and Sonata got serious.

"What do you three want anyway?" Sunset demanded.

"We have orders from our master to bring you in." Adagio answered.

"Well, your master's gonna be disappointed in you three." Rainbow replied, as the girls drew their weapons.

"Don't bark before you bite." Karai retorted, as multiple Foot Bots dropped in.

"Well, this complicates things." Fluttershy said in worry.

"Keep your head high, Fluttershy. We can take them." Applejack said, as she got in a stance.

"Attack!" Karai ordered.

The Rainbooms took fight against Karai, the Dazzlings, and the Foot Bots. As Twilight was forced to fight Karai, Rainbow Dash took Aria, Pinkie against Sonata, and Sunset Shimmer against Adagio. The rest of the girls fought the Foot Bots.

As Sunset was blocking Adagio's hand to hand moves, she spoke, "Looks like you managed to find another means of fighting without using your voices." the girl snarked.

"Make no mistake, Sunset Shimmer. You'll be hearing our singing soon enough." Adagio warned her, as she knocked Sunset away, but the girl got back to her feet looking ready for more.

Rainbow was using her naginata against Aria using her tribaton, "You may have a weapon and ninja skills now. But you'll never be as awesome as I am!" Rianbow warned her, as the two fought.

Aria managed to wrap her tribaton around Rainbow's weapon and smirked, "You say 'awesome' too much," she tugged her wrapped tribaton and disarmed Rainbow Dash, "Especially since you're not as awesome as you say." Aria was about to attack again.

Applejack jumped in and delivered a kick to Aria. The cowgirl looked at her friend, "Are ya ok?"

"Never better." Rainbow replied, as she got her weapon back.

Pinkie fought with Sonata, as the clueless siren was using her tonfa to shield herself from Pinkie's strikes, "Wow, you're pretty good at this." Pinkie admitted.

"Thanks. You are too." Sonata replied.

"Pinkie/Sonata!" their respective sides called. The two looked sheepishly and continued to fight.

Meanwhile Karai was fighting Twilight, who was using all her ninja skills to keep up with her, "Not so tough without Leo and the others to back you up?" Karai mocked.

"We're not going down without a fight!" Twilight replied, as she fought back trying to match Karai.

The Foot Bots had just been demolished, while Twilight noticed her friends were getting tired and knew if this kept up they'd be toast.

"Girls, we need to fall back!" she called.

The girls quickly got to Twilight. Adagio called out, "Don't let them escape!" The Dazzlings and Karai went to attack only to be blinded by the smoke bomb Rainbow threw down allowing them to escape.

Adagio growled, "This is just great."

"How can it be great when they got away?" Sonata asked obliviously. Aria and Adagio face palmed at her idiocy.

"It's not over yet, girls," Karai lightened their spirits, "It's no question they went back to the turtles lair to recuperate. But they'll have to come back up top sooner or later."

"And they'll be bringing the turtles with them." Adagio realized.

"Precisely." Karai nodded.

"And how will we be able to fight both teams with just us and the Foot Bots?" Aria inquired.

"Maybe we should go back and get Rocksteady or Tiger Claw to help us?" Sonata suggested.

"Those guys won't be needed. I got something better in mind." Karai answered.

"Better than them?" Adagio asked.

"Yes. But first I need to get back and break out the last toy the Kraang made for Shredder. Wait here." Karai ordered, as she hurried back to Shredder's HQ.

"Wonder what she's getting?" Sonata asked.

"Whatever it is, it better be useful." Aria replied.

Adagio snickered, much to her friends confusion, "Adagio, are you ok?" Sonata asked.

"Oh, I'm better than ok, Sonata. I feel magnificent! The excitement and thrill of fighting with my own bare hands! Why didn't we learn to do this before?"

"Do you really want an answer?" Aria asked rhetorically, while Adagio scowled at her killjoy partner. As the Dazzlings waited for Karai, Aria was getting annoyed, "What's taking Karai so long?"

"I know. You'd think she'd be back by now." Sonata agreed.

"Patience, you two," Adagio calmed them, "She can't be much longer."

"Hey, what's that?" Sonata pointed up, "A bird? A plane?"

Aria looked up, "Wrong on both guesses."

Descending down was a hulking ninja robot. The three sirens were surprised, until Karai arrived, "Hey, girls. I'm back."

"Karai, you wanna fill us in?" Adagio inquired.

"Yeah. What is this thing?" Aria asked, while looking at the robot.

"This was one of the last inventions the Kraang left to me and Shredder. Michelangelo called it Chrome Dome, so might as well stick with it."

"It makes sense to call him that." Sonata agreed while looking at the robots head.

"With this at our side, taking on the turtles and Rainbooms will be easy." Karai explained.

"Let's hope so," Aria replied, "Otherwise we'll have to answer to Shredder."

Karai sighed, and looked at Adagio, "How can you stand being around such a skeptic?"

Adagio returned a sigh, and answered, "I've been asking myself that for years."

---

Down in the lair, the girls were recuperating from their latest fight.

"Man. I knew we had to expect the worse, but that?" Rainbow asked.

"I know. Who would've thought those girls could do anything besides sing?" Applejack asked.

"Good thing we got out of there in time." Sunset Shimmer said.

"Yeah, but we're going back out there." Leo noted.

"We are?" Fluttershy asked nervously.

"That's right," Raph confirmed, "We gotta finish this fight."

"Sure they'll bring reinforcements, and probably outnumber us, but it won't be so bad," Mikey began, as Fluttershy looked hopeful, "It'll be a lot worse." Fluttershy cowered, while Raph smacked the back of Mikey's head.

Splinter walked in, "My sons are correct. If you do not confront the Dazzlings and Karai to finish the fight, they will find means of drawing you out themselves. Means that will put others at risk."

Twilight spoke, "We understand, Master Splinter."

"And just wait till I see those Dazzlings," Casey began, "I'm gonna drop a whole new game on them Casey Jones style."

"That's one game I wanna miss." Raph replied.

---

After the group was rested, they returned to the surface while on the look out for their enemies. Pinkie was acting all sneaky like a spy.

"Secret agent Pinkie Pie, on the lookout for enemy ninja." she popped in from around an air duct, behind a water tower, even coming out from a door leading down to the building. All at the same time.

Mikey watched how she did it, "I've always wanted to defy all logic like she can."

"I'll never understand how she does it at all." Donnie said in disbelief.

"Can it, dorks!" Raph scolded them, "We're on a lookout."

Twilight was looking around as if studying the layout of the rooftop, "You know taking in the structure of the roof and the timing. If they were to suddenly ambush us, they would do it right about..."

"NO!" the group cried, as suddenly the Foot Bots arrived and surrounded them.

Raph frowned, "You just had to open your mouth?"

"Whoops." Twilight said sheepishly.

Arriving after the Foot Bots were Karai and the Dazzlings, "There you are. We were waiting." Karai said.

"Sorry we didn't make you wait longer." Rainbow replied.

"Hope you're ready for a beat down." Casey drew his hockey stick.

"On the contrary, we brought in something to beat you down." Adagio replied.

"I'm calling your bluff." Mikey challenged.

"Oh, it's no bluff." Aria answered, as Chrome Done dropped in before them.

The Rainbooms were taken by surprise, as Mikey called, "Chrome Dome?!"

"That's a big robot." Pinkie admitted.

"How can we fight that thing?" Rarity asked in worry.

"Like this!" Casey went to attack it, "Goongala!" he swung his hockey stick, only for Chrome Dome to grab the stick. Casey looked sheepish, before the robot threw him aside and Casey rolled across the roof.

"Casey!" April called.

"Attack!" Karai ordered, and the Foot Bots and Dazzlings went on the attack like before.

The Turtles and their friends engaged their enemies, with them slicing and dicing the Foot bots.

Karai jumped in and fought Twilight, "You got lucky last time, but now this is where I finish you." the ninja girl warned the princess.

"I still have to pay you back for kidnapping Spike!" Twilight replied, as she fought back.

Karai blocked some moves before tripping her, "I'll accept payment in your life."

"Back off, Karai!" Leo jumped in and fought her.

"Thanks, Leo." Twilight said, as she got up and fought along side him.

The Dazzlings fought Rainbow Dash, Sunset Shimmer, and Applejack who fought back with all their might.

"I hate to say it, but you girls really are good at this." Rainbow admitted.

"Thank you. We'll be sure your end is swift and painless when this is over." Adagio replied, as the two fought.

Aria sighed, "You've been listening to Shredder talk too much, Adagio."

The turtles and rest of the Rainbooms were clearing through the Foot Bots, before Chrome Dome fought them, "If we can get to the hatch on its back I can disable it like before." Donnie said, as he blocked some of the robots strikes.

Karai overheard him and spoke, "Not this time, Donatello. Stockman improved on it, so your methods like last time won't save you."

"Then we'll just break it like before." Raph said, as he attacked Chrome Dome, only to get grabbed by the head and thrown into Mikey. Donnie had tried fighting it single handed, but got thrown aside into Raph and Mikey.

"Guys!" Leo called, as he went to try and help, but Karai blocked him.

"Why don't you join them?" Karai suggested, as she morphed into her snake mutant form. And struck Leo, before throwing him into the pile of his brothers.

The girls saw Karai's mutant form and were repulsed. Especially Rarity who gasped, "Oh, dear lord."

"That is sick, and not in a good way." Pinkie added.

Karai spoke, "Chrome Dome, destroy the turtles!"

"Acknowledged!" the robot answered, as he ran at the turtles with his plasma sword ready.

The Rainbooms were in shock, and ran to help, "NO!" they cried before shielding their friends.

"Girls!" Casey and April cried.

"Yes!" The Dazzlings cheered seeing they were doomed.

Suddenly Chrome Dome was repelled by a force surrounding the Rainbooms, "What?!" Karai hissed.

The turtles looked before them seeing the girls were glowing before gaining all their pony ears, wings, and tails.

"Whoa." Mikey gasped.

"Amazing." Donnie said in amaze.

"Beautiful." April said in awe.

The Dazzlings knew this was trouble, as Rainbow spoke, "All right, Rainbooms, let's rock out ninja style!"

"Yeah!" the girls agreed, as they took it to the offense on Chrome Dome.

The struck at him harder then they did before, with some firing shock waves of their signature marks when striking with with weapons.

"This could be very bad." Sonata feared.

"Now let's bust this bot!" Pinkie called, as the Rainboom performed a seven way air punch unleashing a force combined with their very elements.

The eyes of Chrome Dome shrank down in fright, as it was blasted by the force. The energy ripped Chrome Dome to pieces leaving him broken and damaged.

Karai shifted back to human form, "Girls, we're out of here!"

"Let's go!" Sonata cried, as the four fled the scene.

The turtles, Casey, and April watched as the girls powered down, before rushing over to them, "Are you girls ok?" April asked.

"Oh, just peachy." Twilight answered, feeling a little dizzy.

"It's all good." Rainbow added.

"That was so awesome!" Mikey cheered.

"Yeah. That was sweet!" Casey added.

"That's how we are." Pinkie replied.

"Come on, let's go back." Leo suggested, as the group helped the Rainbooms along.

---

Down in the lair, the group was relaxing, while the Rainbooms were having some tea prepared by Splinter, "I still don't understand how we were able to pony up without playing instruments." Sunset Shimmer pondered.

"Maybe it's because we're so awesome?" Rainbow answered with pride.

"No, there's got to be more to it than that." Twilight believed.

"I'm just glad it happened when it did." Applejack said.

Splinter approached, "Indeed. I cannot tell how this phenomenon happened, but if it weren't for that your lives could've been in serious jeopardy."

"And it may be the key in stopping the Dazzlings." Donnie added.

"Well, it was they key last time." Twilight admitted.

"Come on, guys. Enough with the science talk," Mikey spoke, "We beat the bad guys tonight, so let's live it up!" he busted out a boom box that played techno music. The group rolled their eyes knowing it was best to let it be for now and just live in the moment.

---

Meanwhile at Shredder's lair, Karai and the Dazzlings stood before Shredder in failure, while their leader himself was not impressed.

"I gave you a simple task, and you can't even pull that off?" he asked with a growl.

"Father, we had them where we wanted them." Karai began.

Sonata continued, "But the girls ponied up and defeated Chrome Dome. There's no way we could've taken them on in that state."

Shredder dashed forward and got into Sonata's face glaring at her. Sonata was scared stiff, while Adagio and Aria backed away, "That is the talk of losers. And I did not have you trained to think like losers!"

"Yes, master." Sonata winced.

"I warned you there would be consequences with failure. Now I will show you those consequences!" Shredder was about to teach them a lesson, until Stockman flew in.

"Master Shredder!" he buzzed.

"What?!"

Baxter buzzed back in startle before continuing, "I just came in to tell you, the Dazzlings gemstones have been restored, and are ready to be tested."

"They are?" Adagio asked hopefully.

"Yes. And I've upgraded them to make them stronger so they can suck out more negative energy from people when they're not even expressing their negative feelings." the fly continued.

Karai and the Dazzlings looked to Shredder who eased up and answered, "Very well. We'll put together a test."

"Yes, Master." Stockman flew off.

Shredder looked back at the Dazzlings who were worried, until he spoke, "It seems you have another chance to redeem yourselves. But remember, should you fail me you will face the consequences.

"Yes, Master Shredder." The trio answered.

Shredder took his leaved, as Adagio whispered to her fellow sirens, "Can you believe it? Our gems have been restored and more powerful than ever."

"I'm so excited!" Sonata beamed.

"Let's just hope bug boy did it right." Aria replied.

"He better, because once we have our magic back we will make those Rainbooms pay for what they did." Adagio smirked.

(And there you go. The girls have learned to pony up ninja style, but the Dazzlings gemstones have been restored. Don't miss next time where they put them to the test, and Twilight's vision comes true.)