Crossover- and Over and Over...

Location- Keeper of The AllSpark ship T.R.E.E.H.O.U.S.E.T.R.O.N.
Currently in the rift between universes

The sound of hurried footsteps rang throughout the halls of the ship as a green and black Autobot walked forward at a brisk pace, carefully listening for signs of other bots. Finally, the sound of idle chatter met his audio receptors. Following the sound, he found himself in a what seemed to be a game room where two other robots- one a three-story robot with jet parts on his frame, the other a human-sized mech with green samurai armor appeared to be rapidly typing away at a computer monitor.

"Guys, there you are!" the car robot exclaimed. "Imperion and I have been searching all over for you!"

"If you want us to go on another mission, forget it, Over-Drive," Technosis, replied his jet wings twitching in irritation.

" Yeah, our near- death experience at the servos of a homicidal computer was enough excitement for the month," the green robot, Legatron, added.

"Well, it doesn't seem to have affected you too badly, seeing how you're currently making a flipping VIDEO GAME about it," Over-Drive stated as he pointed to the computer screen that the two robots were working at. Said screen displayed the words 'Trans-Portal,' with the 'o' being a swirling blue vortex. "Besides, I think you're going to like the universe that we're going to..."

**********

"Universal stream Equine 612.9 Iota ?" Legatron asked. "You mean..."

"The Pony Universe," Technosis finished.

Over-Drive smiled. "That's the one."

"I still can't believe you guys didn't tell me you went to this universe in the first place," a tall combiner complained as he readied the ship’s Universe Bridge. "You know how much I love ponies."

"Aw, let it go, Imperion," Technosis said, "You and Over-Drive were on another mission at the time."

"Besides," Legatron started, "YOU can't do THIS!" His samurai armor then folded away, and was replaced by slightly skinnier panels, including a tail and what looked like spiky hair on his head.

Technosis peered closely at the miniscule mech. “Since when do ponies have jet parts?”

At first Legatron had no idea what his friend was talking about. “OH, you mean the cockpit on my chest. Yeah, I modified my pony form so I could also change into a jet.”

Technosis rolled his optics. “Yes, we are a group of universe-traveling, world-saving robots that no one has heard of. Let’s make our first impressions by being pony-slash-jet triple changers!”

Legatron’s eyes narrowed to blue slits. “HEY! They’re not FIRST impressions if we’ve already met the locals!”

The white, three-story robot faltered for a moment. “Good point.”

“If you two are done exchanging pointless dialogue, we’re ready to go,” Imperion Maximus announced.

“Alright, time to hang out with the ponies again!” Legatron cheered as a Universe-spanning Transwarp field materialized in front of him.

“Remember -” Technosis started.

“I know, I know, mission comes first, blah-di-blah.” Excitedly, Legatron activated his jetpack before plunging into the massive ball of energy.

“Wow, he’s even more immature than you are,” Imperion said.

“Shut up,” the jet robot replied as he followed his comrade through the portal.

Over-Drive was about to do the same when Technosis suddenly came flying backwards out of the Transwarp field. The sportscar Autobot didn’t have any time to react before he was flattened by the taller mech.

Before anyone could voice any confusion, the Transwarp field dissolved.

“WOAH!” Imperion exclaimed. “What the heck happened?!”

Painfully, Technosis lifted himself off of Over-Drive. “Dunno. I was following Legatron when suddenly I was thrown backwards by some invisible force.”

“Legatron!” Over-Drive exclaimed. “Did he make it through?”

“I think so,” Technosis replied, a tone of worry evident in his voice.

A high-pitched beeping drew the two robot’s attention to the control panel that Imperion was working on.

“Bad news,” the combiner started, “Something in the universe is blocking inter-dimensional travel.”

“But we got the bridge open!” Over-Drive pointed out.

“A complete fluke,” Imperion replied. “And it’s highly likely that the only reason Legatron made it through was because he’s so dang small.”

After a moment of silence, Technosis spoke up. “So… what do we do?”

“The only thing we can do,” Imperion started. “Wait. Wait and hope…”

**********

Location: Outskirts of Ponyville

A blue sphere of energy appeared in an otherwise-normal landscape before spitting out a small-green figure and promptly disappearing.

Said figure was sent bouncing down a steep hill, screaming all the way, until he landed in a sizeable puddle of mud.

Legatron wiped the sticky ground off his optics. “Well, THAT coulda’ gone better. Nice work, Imperion.” Upon receiving no reply, he glanced around. “Imperion? Technosis? Over-Drive? Anybot?”

Still no answer.

Standing up, he tried his commlink, only to receive static.

“Odd,” he simply stated. “If this is some kind of joke, I’m going to literally kick your guys’ butts with my-” His optics widened as he realized that, in his excitement, he had completely forgotten to bring his Transtector, a suit of normal-sized Transformer armor that allowed him to stand head-to-head with other Cybertronians. “Well, this bites.”

It was then that he noticed a strange energy vortex in the sky. “Oooh, what have we here?”

Deciding that the portal was too far off to properly observe, he morphed into his pony form and began galloping to the north- the direction to Ponyville.

Abruptly he came to a stop, his hooves digging into the ground in an attempt to stop his momentum.

“Wait a second.”

He threw a glance to his back, where a pair of wings sat neatly folded.

“Oh. Right.”

Unfurling the appendages, Legatron took to the skies.

**********

The silence of the library’s bedroom was broken by a high-pitched yawn. A scaly purple head popped out from under a fuzzy blue blanket, blinking sleepily.

“Aw, man, and I was having the best dream!” Spike complained as he hoisted himself out of his basket-bed. “Oh, well. Maybe one day I’ll finally dream that Super-Spike gets that kiss from Rarity-”

His stubby hand clamped over his mouth as he realized he had said that out loud. Thankfully, Twilight was nowhere to be seen.

Yawning and stretching some more, the baby dragon slowly dragged himself across the room and down the stairs. It came as no surprise to him when he found Twilight surrounded by a half dozen books magically suspended in the air.

“Spike! Thank goodness you’re up!’ the purple unicorn exclaimed. “We have a lot of work ahead of us.”

“But Twilight, I just went grocery shopping yesterday!” Spike complained.

“I wasn’t talking about that,” she replied. “By the way, you bought a package of twenty cookies then, and it was sealed when we went to bed. As of about two in the morning, the box was opened and only eighteen cookies were left. Care to explain?”

“Uh… well… I…” Spike glanced around the room, avoiding any eye contact with the unicorn. “Wait a sec- you were up at two in the morning?”

Twilight nodded as she took a sip of coffee from a magically-hovering mug.

Spike’s face assumed an annoyed expression. “Twilight, why in Equestria did you-”

“I take it you haven’t looked out the window lately?” The mare interrupted, not even bothering to look up from her books this time.

Spike cocked an eyebrow. “Say what now?”

“Just look out the window, Spike,” she replied in an irritated tone.

Still befuddled, the baby dragon complied, walking to the window and pulling back the curtains.

His jaw nearly hit the floor.

“Wha… what is…” he stammered, pointing at the swirling blue vortex in the clouds.

“That’s what I’m trying to find out,” Twilight replied. “But so far all I’ve figured out is that ponies know very little about sky portal things.”

The dragon turned away from the window. “Well, did you think an answer was going to come bursting through the door?”

As if right on cue the front door swung open, revealing a panting green pegasus with black and silver striped hair.

“Wow, I should have seen that coming,” Spike admitted, knowing how cliché things tended to get around Ponyville.

Twilight, meanwhile, was staring wide-eyed at the newcomer. “Legatron?”

“Twi… light…” the pegasus panted. “Thank… goodness…” He paused for a moment to catch his breath. “Man, these organic wings use a lot of energy…”

The purple unicorn walked closer to the pegasus. “Oh my gosh, it’s really you!”

“The one and only!” he exclaimed. “How long has it been?”

“Too long,” Twilight replied. “I was hoping that-”

“Wait,” Legatron interrupted, lifting a hoof (and almost losing his balance). “I meant that literally. Universe travel sometimes means time travel. How long has it been?”

“OH! It’s been about five months,” the unicorn replied.

“Huh, it’s been only four for me.” He shrugged. “Oh well, close enough. Wait, did I just shrug? Didn’t know ponies could do that.”

The purple unicorn giggled at this. “Sounds like still you have a lot to learn about being a pony.”

The pegasus rolled his eyes. “Well, right now I’d prefer a lesson on why the horizon is currently lined with swirling blue portals.”

Twilight’s smile fell. “I was… kinda hoping you could tell US.” Her brow furrowed. “Wait, ‘portals’? As in plural?”

The pegasus nodded- the proceeded to split apart. Twilight cried out in surprise before she realized what was really happening. Seconds later, the pegasus pony had been replaced by a bipedal robot.

Wasting no time, Legatron tapped an odd-looking protrusion on his torso that Twilight was sure wasn’t there last time. Beams of like burst from his chest and shone on the floor.

Twilight gasped in awe as the light beams formed a three-dimensional picture of Ponyville and the area around it.

“Holograms,” Legatron smirked. “Quite handy, they are.” He extended a finger towards a series of five blue dots hovering above the pictures. “I did a quick fly-over before coming here, where I found there were a total of five portals stretching from this mountain-” he motioned to a particular peak from what Twilight recognized as the Canterlot mountain range, “To this forest.”

“Isn’t that the Everfree Forest?” Spike asked with a shudder. Twilight nodded in response.

“So, what do we do about them?” the unicorn asked.

Legatron shrugged. “You got me.”

Twilight blinked in surprise. “You don’t have a plan?”

“Hey, I have a commlink that doesn’t work all of the sudden, scanners that aren’t doing much better, and no back-up,” the robot replied, counting out the problems on his fingers. “I think the best thing we could do is talk to that Sun Princess of yours. She seems to know her stuff.”

Twilight nodded before turning to her assistant. “Spike, take a letter.”

The dragon responded by fetching a quill and a sheet of paper.

“Dear Princess Celestia,” Twilight started, “As you probably are aware, several mysterious vortexes have appeared in the skies above Ponyville and Canterlot. While my research has yielded little results, I am happy to report that Legatron has returned to our world, and is willing to help us solve this problem. Unfortunately he is without backup or communications with his friends, leaving him with little idea on how to solve this problem. It has been suggested that putting out heads together and pooling our resources and knowledge may yield results. With this in mind, I wish bring my friends to Canterlot to-”

“Wait, we’re going to Canterlot?” Spike interrupted. “Aww, does this mean I have to pack?”

Twilight glared at the dragon. “Just keep writing.

“Fine,” he replied with a roll of his eyes.
The unicorn cleared her throat. “I wish to bring my friends to Canterlot so that we may converse with you in person on how to best deal with this situation. Your faithful student, Twilight Sparkle.”

Rolling up the scroll, Spike breathed a jet of green flame on it, causing it o dissolve into a cloud of sparkling dust and swoop out an open window. “Now do I have to start packing?”

Twilight nodded, prompting a groan from her scaly assistant as he ascended the stairs.

“In the meantime, we should find my friends,” the unicorn stated.

No response.

She turned to see Legatron carefully examining a blown-up hologram of one of the portals. “Legatron?”

The robot snapped out of his trance. “Huh? Wha?”

“I said we should go get my friends,” she repeated. “What are you looking at?”

Legatron waved a hand dismissively. “Nothin’. It’s just…” he rested his hand on his chin. “These portals look… kinda familiar… Anyway, you’re right. We should probably go find your friends. Chances are we’re going to need that magic jewelry you used last time.”

“You mean The Elements of Harmony,” Twilight corrected.

The green mech shifted back into his pony mode and began trotting towards the door. “Yeah, those too.”

Rolling her eyes, Twilight followed her friend out the door. For a second he disappeared from view, until she realized he was flying.

“C’mon, hurry up!” he prodded. “Time’s-a-wastin’!”

“Alright, I’m coming,” she replied. “Patience is a virtue, y’know.”

“Well, I hate patience AND I hate virtues,” he complained as he zipped towards Sweet Apple Acres.

Sighing to herself, Twilight quickened her pace.

"Twitchy tail!" A blob of pink fluff appeared out of nowhere.

"Pinkie?!" Twilight jumped back. "What-?"

"Something's gonna fall! Something's gonna fall!" The party pony exclaimed.

“Pinkie, what are you talking about?” Twilight prodded.

“AHHHHHHHHHHHH!”

The sudden yell drew the ponies’ attention to the right-

Where they saw a mass of metal about to crush them.