Disclaimer: The following is a Fan-based crossover! Digimon is owned by Saban Brands and Ultraman is owned by Tsuburaya Productions respectively. Please support the official releases!

Track playing: Ultraman Mebius for Ultraman Mebius by Project DMM

In the starry vacuum of space, a fiery moebius formed and raised as Mebius appeared and rose with it while the stars disappeared!

(What can I do right now? (What can I do?))

In a blue background, Ultraman Mebius was standing straight up as he spun, as if on display.

(We can hear your heart from across the galaxy! No one is a hero in the beginning! (No one is a hero!))

In a forest, Tai, Sora, Matt, Joe, T.K., Mimi, and Izzy were standing next to their respective Digimon partners in their Rookie forms as they faced off against a being that resembles a demon, who was standing next to a woman in a white coat and a black shirt. Just then, the Digimon then digivolved into their Champion forms! Greymon, Birdramon, Garurumon, a woolly Walrus with a longhorn, a six-winged angel with bits and pieces of armor in him, Togamon, and Kabuterimon! The demon then shot out dozens of black gears from his wings as they all flew towards the group!

(It's just a little planet with a different shape!)

Meanwhile in a desert, a woman in a revealing outfit with a trench coat-like design to it, was standing with three monsters behind her, a bipedal lizard with a horn-like crest on its head and red stripes and spots all over its body, a black-exoskeletoned beetle with three orange gems, a creepy eyeball with limbs, and an otter-like Digimon with a pair of scuba tanks on its back, on her shoulders.

(We may clash, but we will work together!)

On a barren wasteland, a blue Ultraman with an armored upper body is yelling to the heavens in a mixture of rage and sorrow with his fists clenched! Meanwhile in the same blue background as Mebius, a team of seven adults were standing lined up under a logo that said "Crew GUYS"!

(Let's overcome the darkness that comes before us!)

In Mebius's inner space, he and Tai were staring down an unknown enemy when they glanced at each other before nodding. They then lunged at the intaty together!

(Let's create a world with no sorrow! Let's not give up on love! Any teardrops will eventually dry away!)

Now in combat, Ultraman Mebius and the Champion began to fight waves of various Kaijus as the two evils! Meanwhile, T.K. was looking at a human-sized, silver with red striped Ultra with horns, who was staring back at him while crouching down.

(The future will be changed by our hands! Our bond will never be broken! Let's go into the infinity light!)

The fight was nearing the end as Crew GUYS in three jets with flame decals and the three Kaijus joined in, finishing off the remaining enemy's forces! Now enraged, the demon and woman both lunge at Mebius as the latter of the two transformed into a grey, seemingly mouthless monster as Greymon and Mebius use their signature attacks on them, causing a blinding light to be created!

(Ultraman Mebius! Ultraman Mebius!)

When the light died down, the heroes were suddenly on earth as they stood triumphantly as the sun setted.

Ten minutes after entering the sewers, everyone was running away from a huge group of slug-like Digimon with human eyes and teeth!


(Digimon Analyser)

Numemon

Champion

Mollusk Digimon

Data type

"KEEP RUNNING! NUMEMON MAY BE WEAK ON THEIR OWN BUT THEY'LL OVERWHELM YOU!" Agumon yelled out!


Suddenly as the Numemon kept chasing them, they began throwing pink globs of poo at them! "WE GOTTA GET OUT OF HERE!" Tai yelled as T.K. spotted a tunnel separating from the main one! "Hey! This way!" He shouted as he ran into the tunnel with everyone following! Unfortunately, the Numemon continued to follow them. Shortly after however, as they finally reached the surface and were met with a clear sunny sky, the Numemon immediately stopped in their tracks and ran back into the sewers. "That's right, the only thing that is able to drive them away is direct sunlight." Agumon stated as they were now able to catch their breath.

A while after, they eventually spot a bunch of vending machines littering the field to their right. "There must be thousands of them!" "I'd say under a hundred." Joe retorted before Izzy chimed in. "Or maybe just 50." "How did they get there?" T.K. asked. "I bet there's enough snacks to last us a lifetime, at least." "Mimi, they probably don't work. Don't you remember the phone booths on the beach or the down towers in the desert?" Tai reminded Mimi as Palmon agreed. "I bet it's a trick, Mimi." "That's a risk I'm willing to take!" Mimi stated as she then made a break for the vending machines, surprising everyone! "EVEN IF THEIR REAL, YOU KNOW THEY'RE NOT PLUGGED IN!" Joe yelled to Mimi as Palmon followed her.

As she and Palmon walked past some of the machines, they stopped at one that, seemingly, contained canned drinks. "Yay, soda! You want one?" "No thanks. We don't even know if it works anyway." Palmon stated as Mimi simply shrugged before putting a hundred yen coin into the slot. However, they quickly noticed that the sound of the coin simply falling before the front of it began to fall, forcing them to run away from the machine! Turning around when they were safe, seeing that it was hollow and housing a Numemon! "Hi, cutie pie. Let me take you on a date." He asked as Mimi and Palmon looked at Numemon in shock before the latter turned to Mimi. "I think he likes you." "What? What are you thinking?! I wouldn't go near that short, slimy, sewer-sliding, sludge-slinger!" "Mimi, you'll make him mad." "Who cares?! Besides, we're safe in the sunlight!" Mimi stated to Palmon until they heard thunder clapping above them, getting them to look up and see storm clouds rolling in. "Um… we were." Mimi said nervously as Numemon then threw poop at them! "Not again!" "Run!" Mimi shouted as they sprinted back to the group! "Party time!" A Numemon said as he and dozens more of Numemon erupted from the vending machines and chased after the group!

Meanwhile, Tai summoned the Mebium Brace and fired a Mebium Shot into the hoard of Numemon, taking out some of them while creating a wall of fire to block the rest! "Oh! Thank you, Taichi." "Don't thank us yet." Tai told Mimi before Mebius took over. "While you were down there, I counted the number of machines and Mebius theorized how many were hiding when one Numemon came out. And I'm starting to think it's double what we thought!" He explained before he sprinted away, queuing the others to do the same! "But at least the fire seems to work like the sun." "For now, Agumon." Tai told Agumon as he took back control and rain started to trickle from the clouds.

Back with the halted Numemon, they tried to get past the fire with no success until the rain kicked up, quenching the flames and allowing them to resume the chase.

"Guys, I have an idea!" "Okay, that scares me." Tai told Matt. "No, listen! The Numemon's only strength is in their numbers, right? So if we split up, we might be able to stand a better chance." Matt explained as the Numemon hoard began to catch up to them, but not by much. "Everybody, split up now!" He shouted as everyone separated each other with their Digimon partners, seemingly also splitting the Numemon up as well.

"Heartbreaker!" The Numemon Mimi insulted called her before hurling poop at her and Palmon, which fortunately missed as they took cover behind some trees! "Jilter!" He shouted before Palmon appeared from behind the tree. "Poison Ivy!" Palmon called out as her fingers grew in length, seemingly scaring off the Numemon before she could attack them properly. "Palmon! Thank you!" "But Mimi, I didn't do anything yet." Palmon told Mimi as she retracted her fingers before being startled by a loud footstep, causing them to run forward a bit and turn around, seeing a giant, yellow teddy bear with an X-shaped bandaid on his stomach and blood red eyes. "It's Monzaemon!" "Come visit us at Toy Town." Monzaemon told them as he looked down at them.


(Digimon Analyser)

Monzaemon

Ultimate

Puppet Digimon

Vaccine Type

"Don't worry, Mimi, I know him. He's in charge of a special place called Toy Town." Palmon explained as she relaxed.


"Toy Town? Sounds like a toy store." "More like an orphanage. Toy Town is a place where he takes care of all the abandoned toys when most of us enter our In-training or Rookie forms before they get adopted by new Baby form Digimon, and those toys love him." Palmon explains as Monzaemon's eyes looked like they were about to roll into the back of his head. "Well, he looks harmless." "He's only like that when no ones disturbing the peace there. Otherwise, he's a fierce guardian." She added as Mimi completely relaxed. "I must say, I am so pleased to make your acquaintance." He claimed.

Minutes later, the immediate area blew up as Mimi and Palmon were now running for their lives. "Acquaintance?! He's trying to kill us!" "You think?!" Palmon asked rhetorically as Monzaemon walked after them while shooting lasers from his eyes! "Please come spend a fun day at Toy Town with me. The only price of admission is your mortal souls!" He told them as his voice suddenly went demonic for a few seconds before he fired his lasers at them again! "Why are you running away? Did I startle you? Sorry." Monzaemon said as he still shot at them! As they kept running, they spotted a Numemon appearing from a trench! "Come here, cookie, I'll protect you." He said as Mimi and Palmon stopped. "No! Thanks!" "On second thought." Palmon said as she and Mimi looked back at Monzaemon before jumping in the trench, "how about a kicky game of soccer, you two? You can be the ball!" He said as he once again told them in a demonic voice as he now lost them, passing over the trench they were hiding in. "He's gone." Mimi said quietly as she watched him before Palmon poked her head out to see Monzaemon leave. "He'd never say any of those horrible things. Something bad must have happened in Toy Town." "Since I saved you ladies, now will you go out with me?" Numemon asked as Mimi and Palmon looked at him with a slight disgust. "No!" Mimi told him before he slammed his face onto the ground. Mimi and Palmon then got up from the trench. "Come on, let's go to Toy Town." "For our friends!" Mimi and Palmon said respectively before they carefully followed Monzaemon to Toy Town, which looked like a giant toy set itself.

As they walked around town, they began to notice that the streets were seemingly empty. "It doesn't look like anyone's here. Something's not right here." Mimi said as they spotted Tai running toward. "Mimi, Palmon! Is that you or are you…?" "Mebius?" Mimi asked as she recognized the voice, causing Mebius to sigh. "Sadly, yes. Taichi is currently… unavailable. Some Digimon named Monzaemon hit us with an attack, and now if I stop controlling him, I fear he may act as odd as…" Mebius paused as he then saw Sora with a red handprint on her left cheek, running away from a toy monkey holding two cymbals. "This is exciting, this is really exciting." She states with a stranded smile and an empty voice. "Them. He'll act like them while I'll e trapped." "What's with the handprint?" Palmon asked. "Oh, right! I thought I could bring Sora back to her senses by 'knocking them into her'. Clearly that doesn't seem to work on Humans." Mebius explained as they then looked at him like he was crazy before hearing Izzy running away from a company of toy soldiers. "Oh, joy. What a delightful activity. This activity is really delightful." Izzy states as he ran past them with the same expression and tone as Sora's. "You want to try that again with him?" "If it didn't work the first time, what makes you think it'll work a second time?" Mebius asked as Matt ran by with a toy train, big enough to fit him, chasing him. "Boy, oh boy, is this really great or what?" He asked in the same tone before Joe then ran past them with a huge toy bird trying to peck at him! "This really rocks! Forget books! This really rocks!" He claimed as Palom turned to Mebius. "Mebius, do you remember how you got here?" "Easily. A few minutes ago, Agumon and I spotted Monzaemon capturing our friends in weird, heart-shaped bubbles." Mebius explained as T.K. ran by as a toy helicopter followed him. "Ha ha! You can't catch me. You can't catch me." He declared before Palmon resumed the topic. "Would the bubbles have anything to do with their behavior?" "Or the fact that everyone's sounding like a bunch of zombies?" Palmon and Mimi respectively added. "Probably. I think he called the attack-"

(Flashback)

"Hearts Attack!" "Mebius!" Monzaemon and Tai simultaneously called out respectively as the latter transformed into Ultraman Mebius! Unfortunately, just as he transformed, he was hit with one of the bubbles, which seemingly does nothing as Mebius rushes Monzaemon as ten heart-shaped bubbles containing most of the group floated away! As he went for a kick to his side, Monzaemon tried to punch Mebius at the same time, only for both hits to stagger each other!

(Mebius: I tried to fight him off, but we were more evenly matched than I thought. And when he captured Agumon in a bubble, I tried to save him, but was stopped by someone else.)

"At Toy Town, we just ooze fun. You can paint the town red with it!" Monzaemon stated before being hit by a Mebium Shot, getting him to momentarily yell in pain! "Hearts Attack!" He called out again as Mebius then summoned his blade and proceeded to cut through 5 of the 6 heart bubbles, missing one as the last bubble captured Agumon! "Tai, help!" He shouted as he was being carried away, causing Mebius to turn to him for a brief moment before he was shot in the back by Monzaemon's laser eyes! Refocused after being staggered, Mebius dispelled the blade and spun the orb in the brace forward, firing a bolt at Monzaemon's eyes, stunning him as Mebius then tried to help Agumon! However as he attempted, his right leg was shot at with a purple energy bolt, causing him to fall before he hastily looked for the attacker, only to find no one.

(Mebius: I didn't know who it was, but that distraction was just enough for Monzaemon to escape with Agumon and the others entow. What more, when I was transforming back, Taichi's conscience was completely silent, like he was in a trance. So when we changed back, I was in total control.)

As Mebius got back up, he saw that Monzaemon and Agumon were also nowhere to be seen, getting him to change back in defeat. However, after he returned to Human-form, Mebius quickly realized that he was still in control of the body, making him gasp in shock!

(Present time)

"That's when I went to Toy Town shortly after." Mebius finished as they were now walking around. "Do you know what hit you?" "No clue. It vanished shortly after." Mebius told Palmon when they suddenly heard someone shouting from a building to their left. "Hello! Can anyone hear us out there?! TAI?! MATT?! HELLO, HELLO! WE REALLY NEED YOUR HELP!" Agumon yelled out as Mimi, Palmon, and Mebius went into the building! "Agumon, is that you?" "Yes!" He answered Mimi as Mebius summoned his blade and proceeded to slice the lock holding the chest, freeing Agumon and the other Digimon that were locked away. "Is everyone alright?" "Kinda. We were locked in this chest shortly after we arrived here." Agumon told Mebius. "Do any of you know what changed Monzaemon?" Palmon asked as the Digimon got out of the chest. "We don't know. He's never like this when a Digimon just passes by." Gabumon stated as Mebius dispelled his blade again and began to see a pattern. "First Meramon losing control of his flames, then Andromon seeing everyone as intruders, and now Monzaemon… wait, what did he want with the others?" "Monzaemon said that they were going to be the toys' toys." Biyomon informed Mebius. "That's three times in a row that a Digimon has gone crazy, and I'm starting to think this isn't caused by a mental illness." "Those gears! Meramon and Andromon both had one in them before we defeated them, more or less." Mimi stated as Mebius looked at her in surprise. "You actually remembered?" "Well yeah, I pay attention sometimes. I'm not an airhead!" Mimi claimed while crossing her arms. "Right. Anyway, with that said, the only ones who can stop Monzaemon are myself and you, Mimi." "You're right, with everyone else out of commission, only we can save the others." Agumon stated as Mimi looked distraught. "Oh, do we have to?" "Yes!" Mebius told her. "Okay, but must we fight him first?" Mimi asked, getting Mebius to nod. "I'm afraid so."

Afterwards, Mebius, Mimi, and their respective Digimon partners went back outside to look for Monzaemon. "This is bad. Monzaemon's hearts aren't supposed to be an attack, they're just to make people feel happy." "And instead it turns them into mindless zombies." Mebius stated as they saw T.K. still being chased by the same toy helicopter. That is, until Mebius grabbed the toy by the tail with one hand and the base of it with the other, causing it to seemingly shut down. "What're you think Ta- I mean, Mebius?" "I'm thinking that if we cause a commotion, Monzaemon will come to investigate." Mebius claimed as they then heard cymbals crashing from where T.K. ran, getting them to look down and see a toy monkey playing the cymbals. "Shut up!" Mimi told the toy before kicking it over. "Not a fan of cymbals?" "Who is?" She asked in return as they then heard Monzaemon nearby. "It's such a happy day in toy town!" He claimed as he turned the corner with multiple balloons in his paws and saw them. "You'll like these. They all blow up!" He stated as he stared at them. "Hey, yeti-teddy! Whatever you've done to my friends, we want you to undo it! Or you'll be in trouble!" Mimi told Monzaemon as Mebius transformed into his true form, growing to Monzaemon's size. In response, Monzaemon released the balloons and fired a laser at Mebius, who braced for the blast as Palmon ran to a nearby fire hydrant and used her Poison Ivy to brace herself to the hydrant while tying up Monzaemon's legs! Mebius then got in close and started punching Monzaemon repeatedly until he pushed him back and fired his lasers again, knocking him down as he then attempted to break free of Palmon by walking forward, pulling her like rope as she struggled to hang onto the fire hydrant, which was now slowly being ripped out of the ground! "No horseplay in Toy Town!" Monzaemon shouted as Mebius got back up just before a horde of Numemon joined the fray! "I'll save ya honey!" One of them declared before throwing poo at Monzaemon's forehead, which only made him mad as he broke free and started knocking some of them away as the rest pelted him! "The Numemon are helping us? Even after everything." Mimi said as Monzaemon used his Hearts Attack on the Numemon, only to be interrupted by a Mebium shoot grazing him as Palmon got back up, looking determined. "We won't let you imprison our friends."


"Palmon Digivolve to… Togemon!"


"You're going down, big boy!" The large humanoid cactus with boxing gloves shouted as she rushed Monzaemon and punched him in the face, staggering him before Mebius kicked his stomach, pushing him back a few meters! Recovering, Monzaemon then fired his lasers with the accompanying of his Hearts Attack. "Not this time! Needle Spray!" Togemon shouted as she shot out hundreds of needles in Monzaemon's general direction as Mebius fired his Mebium Shoot, canceling out the attacks and eventually making contact with Monzaemon as a Black Gear shot out of his back, causing him to fall over with a scorch mark on his chest while covered in needles! Afterwards, Togemon reverted to Palmon and Mebius turned back into Tai, who looked dazed. "What happened?" Tai asked as he then saw Mimi hugging a tired Palmon.

A sun began to set, everyone gathered around Monzaemon, who had regained consciousness and returned to his normal. "Long before Toy Town, when Digimon enter their Rookie forms, they just abandon their toys, practically throwing them away. It was so sad, I decided to create a home for those toys. Eventually, I allowed newborn Digimon to adopt them on the promise that, when they reach Rookie, they'll return the toys here." "Okay, but what was with those bubbles making us believe we were the toys? Surely they weren't meant to make us act like zombies, right?" Joe asked as Monzaemon nodded. "You're right, Joe. I didn't mean for that to happen, and I really am sorry about it. Please accept my apology." He pleaded as they smiled. "Monzaemon, our partners told us that you would never hurt us on purpose." "Of course not, but that gear… it felt like my inhibitions faded away as my insecurities took control." Monzaemon explained to Tai, whom then looked confused. "Inhi-what?" He asked before Mebius took control. "A psychological part of the mind that holds us back." He informed Tai and the others before turning his attention back to Monzaemon. "This just leaves one more question; during our initial fight, we were hit from the back by someone. Did you ever work with anybody else in this place?" "No, it's always been me taking care of the toys." Monzaemon told Mebius as he grimaced. "Eitherway, it stopped me from doing much. I think it might be the creator of these gears." He theorized before returning control. "Hey, tell you what. For helping me, I'll let you all stay for the night and, while I'm at it, I can show you what my Hearts Attack move is supposed to do." Monzaemon offered as everyone looked at him happily.

Meanwhile, at the center of the island and near the top of the mountain, a human woman with neck-long, slightly curly hair wearing a lab coat and a black shirt and pants was standing at the edge when the monster that had been tailing the kids appeared behind her with a red version of it. "Mistress, this scout has come to report that the kids have destroyed another Black Gear, and that they're getting closer to here." "Interesting that they chose to go on foot, rather than use the warrior of light to fly here. Don't you agree?" She asked it as she turned around to look at the two, causing them to nod in agreement. Just then, they looked up after hearing wings flapping as a demon-like Digimon with leathery skin and three belt straps on his stomach, right thigh, and both arms landed next to the woman . "They are conserving his energy as much as possible. Which means we need to slow them down once more, Bogarl." He told Bogarl as she then smiled at the order. "Then I'll lure a Kaiju to the mountain. But in return, Devimon, you must be ready to launch a gear when they're in proximity." She retorted to Devimon before he nodded and walked towards the center as a black portal opened behind Bogarl with red electrical crackling. "The feast will soon begin." Bogarl declared before she licked her lips with a disturbingly long tongue for a human, before she glowed red and traveled into the portal before it closed.

To be continued!