One morning in Unikingdom, Unikitty was watching TV at the castle. She was currently watching a Batman and Robin show while eating Batman-branded 'Bat-Cereal.' Batman was seen on screen, standing on a building in the dead of night with Bat Signal high above, "Batman, dark and mysterious. Aided by his young ward… Aided by his young ward…" the announcer began before Robin entered the scene, looking like he was just finishing with putting on his costume before posing next to Batman. The announcer continues, "Protecting Gotham City with feats of strength and cunning."
The heroes strike various poses, only for Batman to throw out his back with an audible crack sounding, "Robin! To the Bat-Chiropractor!" he says, prompting Robin to put him on a dolly and wheel him away.
The announcer begins again to a montage of the heroes beating various villains, "By beating a rogue's gallery of villains. Like Calendar Man, Condiment King, and the dreaded Penny Plunderer. Batman and Robin unite!" the heroes then pose before a 60's Batman transition plays.
The screen then shows a minifigure announcer, "Hey kids, are you ready to hear the winner of the contest?" he asks.
"I'm ready! I'm ready!" Unikitty shouts while shaking the TV.
"Our winner will receive a special secret collector's item from Batman and Robin. And the winner is…" the minifigure said while trying to read a small card. Unikitty was biting her claws in anticipation, "Oonikittee." the announcer finally said.
"Aww… And I worked forever on those life-size cupcake mannequins of Batman and Robin." Unikitty said in disappointment.
"For these life-side cupcake mannequins of Batman and Robin." the minifigure said while showing a picture of the aforementioned mannequins.
"Hey! Oonikittee stole my idea!" Unikitty said angrily.
The minifigure then pressed his hand against his earpiece, "Huh? What? Oh. It appears I've made a slight error in pronunciation. The real name of the winner is… Unikitty!"
From outside, Unikitty's cheer could be heard while the entire castle did a flip and landed perfectly, "Yay! Oh, I can't wait until my prize gets… here…" she started to say before she noticed the mailman with her package standing next to her. "My prize!" Unikitty cheered while crying tears of joy, prompting the mailman to give her a tissue which she blew into. After he leaves, Unikitty excitedly opens the package. "I can't believe it… The Bat-Call…" Unikitty lifts a horn in the shape of a bat, the outer part being designed as the bat's mouth, "From Batman and Robin! …As seen on TV! I wonder if it still works?" The princess went to the balcony of her castle and sounded the Bat-Call, which sounded exactly like a bat screeching.
The sound reached Gotham City where Bruce Wayne and Dick Grayson were relaxing at the mansion. They noticed the sound right away, "It's the Bat-Call!" Dick said.
"Huh… Haven't heard that thing in a while. To the Batmobile!" Bruce announced as the two of them jumped into the secret entrance to the Batcave. They slid down and changed into their costumes, with Robin saying 'ow' multiple times due to the pole slide burning his hands. Instead of falling into the Batmobile, Batman fell flat on his face onto a platform with Robin landing on top of him.
"Hey, where did we park the Batmobile?" Batman asked.
"Let's find it quickly!" Robin said as they both began searching for their misplaced car.
"It's gotta be here some-" Batman eventually found it parked in the wrong space, "Robin, I-
"Found it!" Robin called out before the rocket on the car fired out, charring Batman, "Shake a leg Batman, time's a wastin'." he said as Batman got in.
"Ignition… on!" Batman said while pushing a button.
"Rockets up!" Robin said while pulling a lever. The car sped out of the Batcave and into the streets of Gotham before making their way to Unikingdom.
From her balcony, Unikitty scanned the landscape for the heroes, "Hmm… maybe it doesn't work anymore." she said in disappointment.
"Activate ejector seat!" Robin's voice called out from below, followed by the boy wonder landing on the guard rail, "Robin!"
This was followed by Batman doing the same thing, "And Bat-" only to fall flat on his face, "-man."
Unikitty gasped in excitement, "Oh my gosh! Batman and Robin are actually here! In my castle!" she said as sparkle matter burst out of her.
After he helped Batman get up, Robin took one look at the princess and gasped, "Holy spliced genes Batman! We've stumbled upon a evil animal splicing facility. Just look at this thing, that poor cat and unicorn don't deserve this fate!"
"Uhh… Actually Robin, that's just Unikitty. She always looks like that." Batman explained.
"Ohh… Nice to meet you. Anyway, we need to find out where that signal came from." Robin said.
"That was me." Unikitty said.
"Alright, where's the danger? Bring it on!" Robin said while getting in a fighting stance.
"There is no danger." Unikitty said.
"No danger?" the heroes said in unison.
"Look, usually when you blow the Bat-Call there is danger. And then… how did you even get that thing?" Batman asked.
"I won it in a contest." Unikitty explained.
"They never tell us these things." Batman complained before addressing the princess, "Look cat-thing, this isn't some kind of toy."
"That's right. We're bound to answer it's call whenever it may sound." Robin said while holding up a hand.
"So only blow it when there's trouble, or there's going to be trouble. Got it?"
"Yes, sir?" Unikitty said while saluting.
"Perfect. C'mon Robin, Alfred's making lobster thermidor." Batman said.
"Hot diggitey dog!" Robin said while following Batman.
"Don't worry, I'll only be using this thing for big emergencies!" Unikitty called out to them.
Later in Wayne Manor, Batman stood in front of a bathroom door and knocked on it. He only wore his cowl and a towel around his waist, "Will you hurry it up in there!? And save me some hot water!" he says just before the Bat-Call is sounded.
This causes Robin, dressed in only his mask, cape, and a towel to bust down the bathroom door right on top of Batman, "The Bat-Call! Away wise mentor!"
He ran towards the Batcave while Batman let out a pained and muffled "Coming." They both slid down the poles to the Batcave with Robin's towel flying off on the way down.
In the castle's throne room, Unikitty was laying on the floor seemingly passed out. The heroes rushed in, with Batman putting Robin's towel back on. "Oh no! We're too late!" the latter cried while cradling the princess in his arms, "Speak to me princess."
"Help… can't… open mayonnaise…" Unikitty said while weakly holding up a jar of mayo.
"What!? You mean I came all the down here in my underwear just to open a jar of mayonnaise?" Batman asked.
"But.."
"But nothing! We are highly trained, cunning, backflipping, butt-kicking vigilantes. We can't just be solving every little problem. There are real emergencies that need our attention. A lot of them." Batman explained.
"Actually, come to think of it, things have been getting a little slow lately. It's kind of boring. Besides, I like the unicorn cat girl." Robin said.
Batman groaned before saying, "Alright, you can sound the call every once in a while. Just make sure its for a big problem that requires our specific skill set."
"You got it!" Unikitty said. In the following days, the princess sounded the Bat-Call many more times for menial tasks. Some examples include painting the castle, getting opinions on clothes, and playing board games.
Eventually, Batman had enough. He snatched the Call away from Unikitty, "That's it! Can't you see you're running us ragged?" he says while gesturing towards Robin who is crawling on the ground.
"Must… answer… desperate call." he says tiredly before collapsing.
"We're exhausted."
Tears start welling up in Unikitty's eyes while she turns into Sad Kitty, "I'm sorry, Batman… I didn't mean it… I just really wanted to spend time with you because… You're my heroes!"
"Too late for that Ms. Contest Winner. I'm going to destroy this thing with my… Bat-Laser!" Batman says while pulling out a bat-themed laser gun from his pocket. He points and fires at the Bat-Call, only for the shot to come out short. He taps on the weapon before firing again, the same result happening. "Whatever, I'll just destroy it when I get back to the Batcave. As for you-" Batman said before Robin interrupted.
"Batman, don't squash her enthusiasm. She could be the hero of tomorrow. Besides, I remember you told me the story of a little boy who wanted to be a superhero after witnessing a tragic incident that scarred him for life." he said while taking out a picture of a young Bruce Wayne.
"I can't believe you're playing that card right now." Batman grumbled.
"If the Bat-Call is too much responsibility, then how about she spends the afternoon on patrol with us?"
"What?"
"To the Batmobile!"
Later on, Batman was grumpily driving the Batmobile with Robin in the passenger seat and Unikitty in the back. She was currently wearing her Batkitty costume. Both she and Robin were singing a song while they drove through Gotham City.
Oh, jingle bells. Batman smells. Robin laid an egg.
The Batmobile lost a wheel and…
Unikitty suddenly moved to the front, "Hey, can I drive?
"Why would I let you drive the Batmobile?" Batman asked.
"I've seen you drive it on the show many times before. I know about all the features. For example, the turbo booster are right…"
"Wait, that's not the turbo boosters that the-" Batman started to say before Unikitty pressed a button, causing the heroes' ejector seats to go off.
Later, they stopped at an interception and spotted a hot dog cart vendor, "Oh hey, didn't that guy used to be the Condiment King?" Robin asked.
"Yeah. I remember he was always so quiet at first glance. Then he would snap to crime." Batman says before snapping his nonexistent fingers, "Just like that." He laughed with his ward before they heard someone calling for help. They found that it was Unikitty, who had the Condiment King pinned under her.
"I got you now, Condiment King!" she said while the heroes ran up to her.
"What do you think you're doing!?" Batman asked in annoyance.
"But you said he could snap." Unikitty said while somehow snapping her fingers, "Just like that."
"What!? Get off me!" the villain said before shoving Unikitty off and walking up to Batman, "If I ever see you here again, I'll…" he takes out a squirt bottle filled with hot sauce and spays it in Batman's face, "Do that! Out of my way, punks!"
The trio was now seated at a diner, "Today was great! I drove the Batmobile, met a villain, and learned how to get hot sauce out of a Bat-suit. So, what do you want to do now?" Unikitty asked.
Batman took out a quarter and handed it to Unikitty, "Say, why don't you find our theme song on the jukebox?"
"I'm on it!" Unikitty said before leaving.
"Always so eager to help out. That's what I like about her." Robin mused.
"Yeah… Let's ditch her." Batman said before taking Robin to the diner's exit.
Unikitty was looking through the song list with her head pressed against the machine, "I can't seem to find it anywhere."
"Just keep looking! Diligence!" Robin told her before he and Batman left.
"Yes, sirs!" Unikitty proclaimed before keeping up her search.
In the parking lot, Batman was chuckling to himself while Robin let out a gasp, "I forgot where we parked the Batmobile." he said.
Back inside, Unikitty was still searching for the song, "Oh, I can't find it. But, I can't let my heroes down." she says, speaking the last part in her Batkitty voice.
The dynamic duo eventually found the car, "Here it is. Now where did I put my key?" Batman said while looking through his utility belt for the keys. Meanwhile, a shadow started to loom over them, catching Robin's attention.
"Uh… Batman?"
"Not now, trying to find the keys."
"I don't think it's your keys you have to worry about." a familiar voice said from behind them.
"What do you mean? Of course I have to-" Batman said before he found what Robin was looking at, causing the both of them to scream in terror.
Back inside the diner, Unikitty ran back to the booth, "I found it! And it's a special dance mix." she said before noticing what was outside the window. Batman and Robin have been captured in a death trap by The Riddler. The trap consisted of a large, green cage covered with Riddler's insignia. At the front of the cage was a panel with a sliding block puzzle, along with a timer that was counting down. "Oh my gosh! It's Batman and Robin's arch-nemesis, the Riddler!" Unikitty said while running outside to catch up.
The villain laughed manically before beginning a tirade, "You'll never save them. Once this timer runs out, your heroes will be obliterated! The only lock is the most infuriatingly difficult sliding block puzzle that I could concoct. You'll never be able to-"
"Got it!" Unikitty said.
Riddler turned to her, showing the cage open and the heroes by her side, "How did you do that?"
"Oh, I just used the Baterang to pry the pieces out and put them in the right place." Unikitty said while holding up the aforementioned tool.
Riddler just stood there in stunned silence before yelling "Smoke Bomb!" and disappearing.
"You did it princess! You saved us!" Batman said.
"I did?" Unikitty asked.
"That's right! I think this calls for a celebratory ride in the Batmobile!" Robin proclaimed while he and Batman lifted Unikitty in celebration.
Now driving in the Batmobile, all three of them were driving along and singing.
Oh, jingle bells. Batman smells. Robin laid an egg.
The Batmobile lost a wheel and the princess got away.