Not a Big Nerd
Rottmnt fan-fic By Bear | Started - 3/7/25
Chapter One
Donnie was nearly there! He just had to attach the knob properly, and then he would have successfully made a real life atom miniaturizer!
He and his brothers collectively loved ‘Jupiter Jim: A Big Problem for a Small Hero’ when they were younger, so he knew they would love it. He even designed it after the prop in the original film! Come to think of though, with the knowledge Donnie had on the actor and ‘props’, it was probably a real atom miniaturizer…
Regardless! He had attached the last piece, and it was time for testing. He turned the knob to a miniaturizing setting, and contemplated what to test it on. He supposed something that could be replaced would be optimal. Donnie scanned the room. He couldn’t find anything immediately, so he decided to walk around.
While he was looking at other surfaces, he was not watching his feet; he tripped on a perfectly placed extension cord. Donnie stumbled, but found his footing. However, the sci-fi gun-shaped machine escaped his grasp, flying out of his hands.
It felt like he was experiencing everything in slow motion, yet it was as though it all happened too quickly to comprehend. It was in the air, then it wasn’t. It landed on the ground, and then a chain reaction began, mesmerizing the soft-shell turtle.
When the miniaturizer hit the floor, it also hit an upturned end of a wrench that was leaning on a stack of notes and papers. The wrench flew into the air, and hit what could be viewed as an appendage-like extension of Donnie’s lab, making it rotate. The tool spun, knocking over some books, one of which knocked another, smaller ‘arm’, that had a magnet on the end, and made that spin around. The magnet got near a newton’s cradle, bringing one of the marbles back. The two marbles at either end began to click back and forth.
They had been created as back up alarms in case any of his brothers came into his lab without his know-how. No-one could resist newton’s cradle, least Donnie’s brothers.
That being said, it set the alarm off. The alarm, and the clicking, and the spinning, and everything was too much for Donnie. He covered his ears and squeezed his eyes shut. He felt energy emanating from himself.
It was quiet. He dared to open his eyes.
Everything had ceased its doing. Odd. Everything was glowing purple— his shade of purple. Further, his ninpo’s shade of purple. Donnie looked down at himself and saw that he was glowing as well. Odder indeed. Perhaps ninpo responds to strong emotions now as well, Donnie theorized.
“Better fix this then,” he said to himself. He closed his eyes once more and concentrated. He thought of natural stillness, and how he just wanted nothing more but that. He felt a natural sort of calmness come over his lab, and he opened his eyes again. Everything was still, and not glowing with his Hamato ninpo.
“Good,” he nodded to himself, looking around the room. He glanced down at the ground where the atom miniaturizer lay. Donnie shook his head as he knelt down. “And to think all that chaos started with— Sure it is, Big Guy… Dangit…”
Sometimes he and Raph mixed each other’s words up— even if they were in different rooms, or complete opposite sides of the city— because they had obtained a portion of the hive-mind power when they had each merged with the Kraang.
“Sigh. Well, let’s see if there’s anything that got messed up…” Donnie said as he turned the object around. He got to the right side. “Nuts and bolts!” There were wires hanging out of the side. “Months of hard work put in, and it finally being ready for testing, only for it to break,” Donnie grumbled.
He started walking over to his work bench. He heard a giggling sound, and froze. “Hello?”, Donnie asked, turning around. The sound was coming from the table in the back of his lab, and it was definitely not anyone he knew that was making it. “Come out, heathen! Or face the wrath of Hamato Donatello. Ninja and genius, certainly no match for you,” Donnie called as he stepped closer.
On the ground in front of the table were screws… Screws that were meant to be in the machine in his hands, come to think of it. “You broke my atom miniaturizer… You deliberately took it apart! Oh-ho-ho, you may think you’re safe behind there, but you aren’t!”, the soft-shell threatened. He examined the wires; they were still connected, so there shouldn’t be any problems with the technology itself. Just the frame.
Donnie strode over to the table, bent over, and picked up the screws. He materialized a screwdriver for a moment, hastily screwing the bits of metal in. The screwdriver vanished at Donnie’s command.
As the purple masked Hamato looked up, a cat-like creature with black-fur, a tail with a pink tuft, and gray leopard print, leapt out at him. It’s eyes were emerald green. It giggled again. He fired the miniaturizer “gun” at it, and it dodged. It laughed harder, as if amused by his endeavors.
Donnie fired at it again, but the recoil didn’t push him back because it was going forward,,, it was because the frame came loose again, and the blast was being aimed at Donnie.
He dropped the machine, and squeezed his eyes shut. He felt as though his body was being crammed into a mold that it shouldn’t fit, and then he felt a pressure all around, like he couldn’t breathe, and then…! It was over.
He opened his eyes, unsure what to expect. But he when he did… well, there was the atom miniaturizer, on the ground in front of the table. And his lab… it was huge! Or rather, Donnie was small…
The cat emerged from behind the table, cackling. There was a sudden whoosh, and before him was not a cat, but a witch!
She had no hat, but her elf-y ears gave it away. She didn’t have colorful skin, however, but appeared to have black skin, as Donnie’s best friend did. She had lighter-colored magenta hair, and her black hair was growing out. She had green-blue heterochromia. She had a black— as in the color— patch on each ear-tip.
The girl continued to cackle as she picked up the miniaturizer. “Oo, Bella will love this new toy,” she said with a slight New York accent, examining Donnie’s technological miracle with a wondering eye. She glanced at the table. It had one thing on it: the blueprints for the atom size adjuster. She picked that up as well before storing it in the hammer-pocket. “Well, thank you for the laugh. I’ll be off now. See ya!” She pulled out a bottle and poured the white contents out on her head. A poof! of glittery white smoke, and she was gone.
Donnie sagged as reality sank in. No blueprints. He didn’t think he could materialize the miniaturizer with his ninpo either. He was stuck like this.
Ah, shell.
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Woo! First chapter ✔️
The art featured in this chapter was done by @random-fandom-and-stuff , and it's what inspired this fic!













