Well here's the second one shot of the humans with quirk series featuring everyone favorite safe kid Marco Diaz! Try taking a guess on what his quirk is before its revealed.Enjoy!


Late one night at the Diaz Household, Marco and Star were in the kitchen with the boy hard at work, making Star his favorite food in the entire universe: nachos! "Trust me, Star, you haven't lived until you try my nachos! And since Mom and Dad's out all night, we'll have them all to ourselves!" Marco spoke excitedly to his blonde friend.

"This Just in. Three Teenage Girls has gone missing in Los Angeles, California. Their families are distraught while Police suspect it to be the work of a villain. So far no further statement has been released regarding this incident" came the announcement from the radio.

"A kidnapping huh?" Marco thought before he remembered an incident just a few month back where some white haired villain had also tried to kidnap him and said something about how his quirk was worth taking. Luckily the hero Elecplant had been patrolling nearby and managed to save him from the villain but unfortunately they weren't able to apprehend the guy.

"Yeah that was probably the scariest moment of my life next to Janna using her quirk on me to embarrass myself in front of Jackie" Marco thought as he finally finished preparing his nachos, he then presented it to Star with excitement.

With pride in his voice, Marco wheeled around, creation in hand, proclaiming, "Behold Star, feast your eyes on this!"

"MARCO'S SUPER AWESOME NACHOS!" Star said in an excited tone as she clapped excitedly at the new food. Carefully, the princess picked up a nacho. "oooooh, triangle food." Just as Star was about to eat one, there was a knock on the front door.

"I wonder who that could be?"Marco questions to himself as he went to open the back door."My parent's are not supposed to be back yet". However, when he opened it, he finds no one there.

Marco got a confused look, which slowly changed to one of suspicion as he looked from left to right. As a habit instilled by his dad, he prepared to use his quirk to defend himself just in case. Fortunately, he didn't have to, as when he looked to the left again, he heard a voice speak up.

"Yo, what up home fries?" came from what appeared to be a flying unicorn head.

Marco's eyes went wide in shock as he froze on the spot. After a few seconds of looking at the floating horse head, the boy mustered the only three words that came to mind at that moment.

"WHAT THE F-."

"*gasp* No way! Flying Princess Ponyhead!" interjected Star in excitement. Star immediately, practically shoving Marco out of the way in her enthusiasm as she stepped to Ponyhead and hugged her.

Marco finally snapped out of his shocked state and spoke up. "Wait, did you say Flying Princess Ponyhead? The same Ponyhead you were telling me about a few days ago?".

"Yep! the one and only!" Pony head answers in a smug tone before turning to Star. "Now B-fly, who is this turd?".

"Hey!" Marco protested.

"Oh, this is Marco Diaz, my best friend," Star answered while Marco waved and smiled nervously.

"Your best friend?" Ponyhead said in a sad voice.

"Huh? Oh no-no-no-no, he's my best friend on Earth. You're my best friend on Mewni". Star corrects herself immediately, hoping to avoid hurting Ponyhead. She had learned a long time ago that Ponyhead got jealous fairly quickly.

Ponyhead moved in closer and snorted right in Marco's face, but ceased when Marco gave him a stare that just said don't even think about it, lady. After a moment or two, Ponyhead just said, "Well, whatever. Gurl, we are going out tonight! You ready to make some baaad choices?" Ponyhead asks in anticipation.

"Am I?!" Star immediately answered in an excited tone. Turning to Marco, she asked him, "Whaddya say, Marco? You ready for your first interdimensional trip?"

"Relax, Star, you know I'm down for anything Star. Especially if it's going to involve other dimensions". Marco said in his usual calm tone, though with a hint of excitement in it. "I've been itching to see more of the multiverse ever since you told me about it"

"Well, I was hoping it would just be B-Fly and me, but whatever! Great!" Ponyhead said before spitting out a pair of scissors.

"Dimensional Scissors, Ah jealous!" Star said excitedly as Ponyhead cuts open a portal. "Oooh, so that's how people travel between dimensions. So what do I do, do I just walk through-"

Before Marco could finish his sentence, Star grabbed his hand. "Let's go, Marco!" before jumping into the portal.

Ponyhead then follows, before turning and looking around suspiciously before entering the portal as it closes.

Another portal then opens up seconds after Ponyhead entered. Three figures wearing scary, nazi-esque uniforms with masks on their heads emerged from it, the one in the middle then inspecting the pile of glitter on the ground.

"Glitter, she's close" It spoke in a robotic voice before pulling out a dimensional scissor and entering the portal with the other two following him.


Marco and Star emerged from the portal and landed on their feet with Ponyhead landing(floating) next to them.

"Woah, where are we?" Marco questions while looking around in curiosity as he took in the environment.

The environment looked very much like a club you find back on Earth with a dance floor and some beanbags and couches along the edges of the area. What wasn't normal were the vast number of non-humans of what seemed to be different species from all over the cosmos and the fact that everything seemed to be placed on top of clouds in a vast purple space. Up at the Dj stand, some creature that Marco didn't recognize was playing. People were dancing or just chilling on the sidelines, talking with each other creating a fun yet very laid-back and chill atmosphere.

"This is the Bounce Lounge, my favorite place to just chill." Star laid back completely relaxed while letting out a small sigh. "Just watch out for the spikes along the edges."

"Wait, did you just say spikes?" Marco questioned in confusion before nearly stepping off the edge. Had he not balanced himself, he would have fallen over the side. When he looked down, he saw that there indeed many spikes on the ground surrounding the dance floor. Marco could feel sweat trickling off his face at the sight, especially when he saw a skeleton impaled on one of them. Imagining himself in the poor skeleton's face made him shudder at the close call.

"Woah! That was way too close for comfort", Marco thought while the skeleton from below chanted for him to fall much to his surprise before he was suddenly pulled by Star away from the edge and toward a photo booth.

"Ooh, Marco! Photo booth, a photo booth!" Star said as she excitedly as tossed the hoodie-wearing boy into the photo booth, before being followed by her and Ponyhead.

Star pulled the two in close, and the booth began taking pictures with the first one having Star in the middle while Marco and Ponyhead are pulled in close. As the photos kept on coming, Marco and Ponyhead seemed to compete over who would be in the spotlight with Star. At first, it was very subtle, but it slowly became more aggressive when Ponyhead pushed Marco, knocking him into a wall. Marco didn't take it lying down, however, and he pushed Ponyhead down so he could look over her, forcing her out of the camera altogether. Star, though, was oblivious to what was happening behind her, having too much fun with her best friends.

"Alright, now just you two. So we can remember the day my besties became besties." Star smiled, moving out of the photo booth with the two at first smiling as she left. As soon as she was gone, the two then pushed their heads together, growling like angry bulldogs (noises and everything)

"Listen here, earth turd; we are not gonna be besties." The two stopped to get a picture as Ponyhead talked. "We are not gonna even be second besties."

"First off, perhaps the only thing I'll agree with you on. Second of all, Second, besties is not even a word, let alone a thing." Marco stopped so they could get another picture.

"Oh, you wanna make this a thing? This night is really important to me, so you stay out of my way, or you gonna get the horn. Got it?" Ponyhead shoved her horn at his throat. Marco just looked at it for one second, then pushed her horn out of the way until he was looking at her dead in the eye. "Lady, I fight monsters on a daily basis with Star. You think that's going intimidate me?" Frustrated that she couldn't bully him into submission, Ponyhead just snorted in his face again and left before Marco could say a word.

"Bitch" the boy muttered as he watched Ponyhead float away. Oh how satisfying it would be to just use his quirk on her but he wouldn't stoop that low. His line of "bad" thoughts was interrupted when Star came and grabbed him, dragging him onto the dance floor and spinning him around like a top. He felt dizzy at first, but after a moment or two, he began to enjoy himself and started laughing alongside Star. Unfortunately, he didn't notice when Ponyhead began dancing wildly and smacked into him, sending him reeling towards the edge before falling off. Thankfully, he was able to grab onto the side just in time. Still, he was more than a little irritated at what had just happened. "

I'll bet she did that on purpose for what happened in the photo booth",he thought as he climbed back up. When he looked down at the spikes, he noticed that one of the skeletons was chanting, "fall, fall, fall." "Yeah, sorry, bonejangles, but not today."

"Oh my gosh, Marco, are you okay? You need to be more careful!" Star said as she came over and picked him up and took him away from the edge.

"It's alright, Star. If anything, blame Ponyhead. I'm pretty sure she did that on purpose!"

"What? *pfft* nooo. She just tends to get crazy when she's dancing." The two looked back at Ponyhead, who was now riding another dancer like a horse.

"*neigh* Oh yeah, you like that, huh? You know you do *neigh*." For some reason, Marco felt like that image would give him nightmares for a few days.

"And while we're on the subject, she threatened to skewer me in the photo booth, Star." At this point, Star got a sheepish look on her face.

"Yeaahh. She can be a tiny bit...possessive. But that's just because she values me as her bestie. I'm sure she didn't mean anything by it", trying to reassure Marco.

"Well, alright, but if she tries anything like that again, I won't be held responsible," Marco replied as he glared daggers at Ponyhead.

Suddenly, Star's face lit up with an idea and turned to her floating horse friend "Hey, Ponyhead, how about we head on over to the Amethyst Arcade? That seems more like Marco's style."

"Gurl, are you crazy? I am too busy. Getting. My. Dance. on." At that moment, though, Ponyhead heard another portal open up, and out came a group of familiar-looking beings in creepy uniforms. Panicking, she suddenly shoved Marco to one side and got out her scissors and began to tear open a portal. "Um, on second thought, maybe we should hit up the arcade. Like, right now!" she said as she then dove through the portal.

"I think she's warming up to you, Marco." Marco, on the other hand, was still unsure as they dove into the portal. Had they chosen to look back, they would have noticed the menacing uniformed men looking around in search of someone. They then began speaking to various party-goers. "Have you this seen this flying horse head?" one of them asked in a threatening tone while holding a photo of Ponyhead.


When Marco finally got his bearings, his eyes widened at what he saw. They were in a giant cavern filled with beautiful crystals. That's not what he was shocked at, though. As far as he could see, the entire place was lined row to row with arcade games. "Is this what heaven looks like for gamers?" Marco thought as he drank everything in.

Star seemed to have picked up on the sheer joy on his face as she playfully nudged him in the elbow. "So, you like this place?"

Marco immediately turned towards Star. "Are you KIDDING ME? THERE ARE SO MANY VIDEO GAMES! I LOVE IT!"

"Yeah, I figured you'd like this place," Ponyhead floated over and said. She then whispered, "it's full of squares, just like you." At that moment, a bunch of living squares looked over in their direction at that comment".

"Oh, Marco, Ponyhead, look, look, look, look! Lance Lance Revolution! That game is perfect for you!" Before either of them could react, Star shoved them towards the giant arcade game, the two smiling nervously. Their smiles morphed into faces of anger as they growled at each other.I'm going to enjoy beating her smug face into the ground, Marco thought as they readied their weapons.

"Starting, Super Awesome Ponyhead vs. Lame Earth Turd." Marco did a double-take at that statement. "Hey! When did you even have time to enter that?"

"Round One, JOUST!" And the game began between Ponyhead and Marco.

Marco and Ponyhead got really into the game, but if the floating head thought that she would be able to crush Marco easily, she was in for a rude awakening. Thanks to being childhood friends with Alfonzo, who was an avid gamer, Marco ended up picking up a thing or two when it came to gaming, which gave him an edge in video games. People had even told him he could go pro if he wanted to, but he just thought as video games as a hobby to blow off steam. Marco seemed to catch onto the game quickly, with Ponyhead losing ground.

Star, meanwhile, was pleased to see the two finally getting along. "Aww, you finally like each other," She said as she patted both on the back. However, she found that they were covered in sweat, grossing her out. She then decided to leave them be while she got ice to cool off and to wash her hands.

"Hey, you, square. Have you seen this floating head?" Ponyhead dropped her lance in shock when she heard that voice. Sure enough, it was coming from those scary-looking men again. Unfortunately for her, Marco took the opportunity to win the game, pumping his fists in the air. "Ha, ha! Who's the turd now, Pointy Head?"

"Still you, Earth Turd!" Ponyhead retorted before leaving Marco to groan in irritation. Don't use your quirk on her, Diaz. No matter how annoying she is, it's not worth it to beat her into a pulp. Marco didn't have long to be irritated, though, as a line of talking squares came up to challenge him.

"Uh, hey, B-Fly, I'm already bored, and your tagalong won't stop bragging. Let's screw up some other place". Ponyhead had reached Star and nervously tried to get her to leave at once. Star was too distracted to notice it, but there was some nervousness in her bestie's voice.

"Oh, all right. Let me just grab Marco, and we'll go". Ponyhead then quickly cut her off. "Uh, there's no need! He already went to get a spot ahead of us!" Ponyhead then cut open another portal with her scissors.

"Ah, that's so sweet of him. Always looking out for others. You know, when I ended up causing him trouble when I first came to Earth, he didn't hesitate to let me stay. Can you believe it? What a great friend!" Star then backtracked on what she said. "Oh, but not as great as you, Ponyhead. You're still my bestie on Mewni!"

"Yeah, whatever, let's go before we miss the good stuff," Ponyhead said in a rush to leave the arcade. Hmm, that's...not like her to blow a statement like that off. Star thought little of it, though, as she jumped through the portal.


Meanwhile, Marco had just managed to beat three other players in a row and was having the most fun all night. "Ha! Try and top that, Pointy Head!" At that moment, though, he realized that Star and Ponyhead were nowhere to be found, and his irritation returned. "Great, she must have ditched me and took Star along with her. Maybe it wouldn't hurt to use my quirk a little bit on her to knock her ego down a notch". That was the least of Marco's concerns, though, as he felt a gloved hand on his shoulder, while everyone suddenly looked ready to run away in panic.

"You, boy. We need to talk". As Marco turned around, he saw the voice came from a giant man wearing an intimidating mask. "Ah, crud", Marco thought.


Meanwhile, Star and Ponyhead were busy enjoying themselves at an underwater dance club called the "Scum Bucket." The two were crowd-surfing and having the time of their lives as they listened to the band play in the distance.

"Woo-hoo! Isn't this the best, B-Fly!" "Oh, definitely, Ponyhead. But I can't help but notice that Marco's not here. Shouldn't he have found us by now?"

"Ah, who cares about that Earth Turd? I'm the only friend you need, gurl, and I am way more fun than he can ever be!"

As soon as Ponyhead said that, though, Star got concerned. "Ponyhead, where's Marco?"

"Ah, funny story, you're going to love this. But... I ditched him and left him back at the arcade."

"You did what?!" Star asked incredulously. She then immediately got off the mosh pit and looked at her friend. "Ponyhead, how could you do that to him?! He's my best friend!"

Ponyhead then gasped. "Whoa, whoa, whoa. Whoa. Last time I check, I was your best friend."

"I can have more than one best friend, you know. Unless, of course, one of them is a friend-ditching liar." Star crossed her arms and glared at Ponyhead, making the horse feel guilty.

"Does that turd mean that much to you?"

"He's not a turd, and even if he were, he'd be the best turd I've ever met. Remember how I said how I caused trouble for him when I first came to Earth? I set fire to a part of his school. I got all the furniture in his room, sucked into a black hole, and we had to fight off a bunch of monsters after he showed me around town. Yet he managed to take all of it in stride, whereas any one of those things would make my parents send me to St. O's."

At this, Ponyhead began to feel guilty. "Alright, then. Let's get Earth Turd. Hopefully, he hasn't gotten into any trouble since then"


"For the last time, I don't know where she is!" Those men had tied Marco to a chair and began interrogating him, demanding that they tell him where Ponyhead was. When they didn't like what they heard, they decided to start turning their portable lamp on and off in a rapid fashion which annoyed the hell out of him.

While Marco was trying to act like he was about to break, though, in truth, he wasn't concerned in the slightest. He knew that if he wanted to, he could just use his quirk to get him out of this. He just preferred using it as a last resort.

"Not talking, eh? Well, how about if we do this?" One of the men suddenly held up a signed autograph of love sentence which he was supposed to have hidden in his hoodie

"*gasp* How did you get that? Give it back. It's mine!"

"Oh, this upsets you? Well then, it would be a shame if we were to set it on fire". The guard holding the lamp then handed the book to another guard. "Burn it." The guard complied, pulling a lighter out of his coat and began to dangle the picture above it. "Last chance, kid. Where is Ponyhead".

Instead of answering Marco suddenly shouted before breaking free from the rope. The men barely had time to react when, Marco delivered a roundhouse kick to the one holding his photo, grabbing it, and returning it to his pocket.

"You just made a big mistake, pal," Marco said as he got into a fighting before the men charged him


Meanwhile, Star and Ponyhead came in through a portal in time to see Marco fighting off the masked thugs.

"There he is. Crystal heart dagger..." Before Star could finish powering up her spell, though, Ponyhead stopped her. "No, wait, gurl. It's too dangerous. Here, take these." Ponyhead then held out her tongue and gave her her dimensional scissors. "Trust me, where I'm going, I won't need these." Before Star could process this, her floating headed friend had already charged into the melee.

"Hey creeps, I heard you were lookin' to ride with a pony. Well, come and get me!" The men then ceased fighting Marco, who refused to let them go. "Oh, we are so not done!" he said as he chased after them.

As the duo let the enemy pursue them, they began to create as many obstacles as possible. Ponyhead began zapping the arcade games, causing them to blow up in puffs of smoke. "Hey, Earth Turd, what do you think you're doing trying to hog my spotlight. I'm trying to go down all heroic and stuff. Besides, I thought you hated me." As Marco ran while toppling over some of the machines to slow them down, he looked at Ponyhead and said,

"Oh, I do hate you. But if you're important to Star, you're important to me. Besides, these guys had it coming," adding the last one with a cocky smirk on his face.

"You know, I don't even know why I bothered coming back here to get you. You seemed to have everything under control already. You're lucky that Star cares about you so much, Earth turd", the floating horse head said as she zapped at one of the pursuers.

"Ah, well, I've been taking karate classes for years, so I know how to defend myself." More than you realize, though he didn't say that last part out loud. "Still, it's the thought that counts, Pointy Head" before spin-kicking one of the masked marauders

Just then one of the men attempted to jump Marco from behind but before he could get any closer a gigantic sea snake-like creature suddenly emerged from Marco's back. The creature caught the soldier in its jaws before slamming them onto the ground and crushing them.

"Dang Earth Turd! What the heck is that?!" Pony questioned while looking at the creature that is connected to Marco's back and was holding down one of the men in its jaw.

"Its my quirk", Marco simply said which only got a look of confusion from ponyhead. "So, how long do you think we can keep fighting these flunkies?" Marco asked as the two were now backed into a corner.

"As long as it takes, Marco," Star said, suddenly appearing out of nowhere.

"You have no idea how hard it was to catch up to you guys."

Smiling at his best friend, Marco replied: "Well, it's great knowing you got my back, Star." he then had the creature throw the soldier it was holding down into its companions knocking them down in the process.

Before they could continue their fight, though, a loud, booming voice could suddenly be heard throughout the Amethyst Arcade. "Time to give it up, cupcake."

A giant unicorn head with a blue flowing mane and crown atop his head suddenly appeared behind their attackers, making Marco look on in shock, Star in confusion, and Ponyhead in guilt.

"King Ponyhead? What's he doing here?" Star asked aloud while Marco could only stand there with his mouth open in shock.

"Oh, hi, daddy.", Ponyhead said without looking up from the floor. Marco couldn't contain his shock anymore. "THAT'S YOUR DAD?!" "Ponyhead, what's your dad doing here?" Star asked her friend.

At this point, Ponyhead looked at Star with sadness in her eyes. "Oh, Star, it looks like the jig is up for me. But at least I got one last night of partying with you, gurl." "Before what?" Ponyhead couldn't contain her tears anymore: "Before this. I'm going to St. O's!"

Star gasped in shock, "NOT ST. OLGA'S REFORM SCHOOL FOR WAYWARD PRINCESSES?" Both girls immediately screamed as they remembered all the horror stories they heard about the place.

"Oh, it's true, B-Fly, but I brought this upon myself. I'm going to the slammer!" The two friends then hugged each other while the tears flowed down their faces. At this point, King Ponyhead interjected. "It's not jail, cupcake, it's reform school. Although, admittedly, it is a lot like jail." That just made them cry even more.

After they finished sobbing, Star looked at Ponyhead. "Ponyhead, you knew that you'd go to St. Olga's, but you came back anyway to save Marco?"

"Yeah, well, it doesn't look like he needed much saving in the first place. That dude can take care of himself pretty well." Marco couldn't help but smirk at that before the retracting the creature he had summoned back into him. "Plus, as much as I hate to admit it, but he is your other bestie."

"Aww, thank you, Ponyhead. Hugs!" After that, Star pulled the three of them in for a group hug, which Marco couldn't help but return.

After that, Star and Marco said their goodbyes to Ponyhead as the guards hauled her off to St. Olga's, with her even thanking Marco and calling him by his real name for the first time that night. She then laughed like crazy as she said that no jail could hold her for long.

"Ah, kids. You have them at first, and then you wish that they weren't around. It was nice seeing you again, though, Star". King Ponyhead then went inside the portal as it closed up.

Despite everything, Star couldn't help but grin at what happened. "I can't believe it. My two besties did become besties after all!" At that, Marco turned to Star and said, "Yeah, I wouldn't go so far as to call us besties. But I think she's starting to grow on me."

Suddenly, he went wide-eyed. "Oh, crud, we're stuck in another dimension!" "Actually" Star then reveals to Marco the same scissor Ponyhead used earlier.

GASP* "Does that mean?" Marco asked with excitement.

"Yep! We can go anywhere we want in the entire universe," Star said excitedly. Marco couldn't help but pump his fists in the air at the prospect "AWESOME!"

"So, are you thinking what I'm thinking?" Star asked with a sly look on her face.

Marco smiled as he was also thinking about the same thing.

"Yep, nothing better than watching movies while eating nachos. Good thing I had enough for a second batch." Marco said as he eats a nacho with Star. "Oh my gosh, Marco, you were right. These are soooo good. We never have anything like these on Mewni." Marco couldn't help but grin at her saying that.

"If you think that's good wait till you taste what my friend Gustav can make who by the way will be visiting next month" Marco said

"Ooh! I can't wait to meet him! I wonder what his quirk is"

The duo then spent the rest of their night watching funny parodies of horror movies.


Marco Diaz- Quirk: Hydra

Hydra allows Marco to summon a gigantic sea snake-like creatures from his back that he can control at will. The creatures are large enough to crush a person in their jaws. Marco usually summons one single snake although the creature can split in two or many more when attacked.

Marco generally reserves his quirk to surprise enemies who attack him from behind or when he cannot rely on his hand to hand skills.

--

I had to go through a lot of quirk for Marco some of which included Metal Manipulation, Foldabody, and Strongarm before I settled on Hydra. Anyways hope you enjoyed.

Next on the one shot series list are

1.Amphibia's Sasha Waybright(Quirk has been decided)

2.Owl House's Luz Noceda(Quirk is yet to be decided)

3. TBA.

See you next time