Fanfic / Spider-Ninja

In a distant part of the Spider-Verse, four-year-old Petra Parker lost her Aunt May and Uncle Ben in a traumatizing incident. Luckily, she was found and taken in by Master Splinter, a master ninja (who also happens to be a large mutant rat). She was raised alongside his four sons (all mutant turtles), and became a skilled ninja. After a fateful trip to OsCorp, her DNA was mutated by special spider venom, giving her arachnid-like powers. Together, the ninja siblings spend their nights as unseen vigilantes, defending NYC... and unknowingly attracting the attention of a certain agency.

Written by inkravens45, this is a crossover fic between the TMNT and the Spider-Verse. The first part can be found on Fanfiction right here. The full, continuing version can be found on Archive Of Our Own right here.

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Tropes found in this fic include:

• Adaptational Friendship:
  • In canon, it isn't established how close the Agents Parker and Logan are. In this fic, Logan was one of the Parkers' friends, enough so that they invited him over for Christmas once or twice and introduced him to baby Petra. He tells Petra as much when he meets her, and tells her stories about her parents when she asks.
  • In canon, Doctor Octopus, Doctor Curt Conners, and Doctor Baxter Stockman never meet. Here, the three were college friends (although the friendship fell apart after Ock had his lab accident and Stockman was fired).
• Adaptational Location Change: In canon, the Avengers fought the Chitauri in New York City. Here, that fight took place in L.A. But Stark Tower still gets renamed Avengers Tower.
• Adaptational Nice Guy: This iteration of the Green Goblin is still a supervillain, but he actually displays some standards he rarely does in many continuities such as his disapproval of Revenge by Proxy, particularly towards children, and adamant refusal to make things personal with his enemies. The fact that The Shredder does both causes him to immediately get on Gobbie's bad side.
• Adaptational Upbringing Change: In this story, Petra Parker lost her aunt and uncle when she was four. Thus, unlike most Peter Parkers who were raised by their respective Aunt Mays, Petra is found and adopted by Master Splinter. As such, Petra, while sharing many traits in common with her male counterpart, has more respect for authority, is a trained martial artist, and has never been a solo act (having always fought alongside at least one of her brothers).
• A Minor Kidroduction: The fic starts when Petra is four and the Turtles are five, then skips to their first fight six years later, then finally skips to when Petra is fourteen and the Turtles are fifteen.
• Anger Born of Worry: Splinter tends to be strict with his kids, but it's out of worry for them. He knows that, due to their being mutants, life will be a lot harder for them. Even though they're capable of defending themselves in most situations, he still worries about them. Considering the respect they have for him, they all clearly know this.
• A Rare Sentence: Halfway through the fic, Spider-Ninja says this:
  Spider-Ninja: Can you sue a giant lizard man if you don't legally exist?
  Mikey: (thinking) There's something you don't hear every day.
• Awesome by Analysis: Even with Petra giving as little information as possible, Black Widow is still able to determine a lot about her from simple small talk.
• Batman Gambit: It's implied that Splinter pulled this when Petra learned about what happened to her aunt and uncle's killer. He knew that she would likely sneak out to go after him, and that the Turtles would go after her. Thus, he said nothing, knowing that his sons would be able to help Petra with this problem more than he could. He all but reveals it when the five get back from Brooklyn.
• Bavarian Fire Drill: Petra broke into OsCorp by joining a group of high school students on a field trip and simply pretending like she was supposed to be there. No one gave her a second look.
• Beware the Silly Ones: Mikey is easily the jokiest, most fun-loving member of his family. But he's also the team's most athletic member (he's the fastest runner, capable of outlasting Petra even after she got her powers) and, when a member of his family is threatened, he drops his laid-back personality and gets serious.
• Big Brother Instinct: While they are all capable fighters, the Turtles all have this for their little sister (though she's only a year younger than them) and each other while Petra will do the same for them.
  • When Casey Jones first fought Raph, he accidentally broke Petra's ribs. Raph lost it and possibly would have killed Casey if Petra hadn't intervened. He's also visibly nicer to his little sister than he is to his brothers.
    • Casey, in Chapter 40, has become this trope as well, as he not only willingly goes to the Bugle with Petra (both of them disguised so they can investigate a prison break), he stays near her the whole time and puts a protective arm around her when she seems nervous.
  • Leo has this for all of his siblings. After Stockman burned Mikey's arm and tased Raph and Pet, a furious Leo punched Stockman hard enough to break his glasses (along with his nose) and knock him out cold. When Petra later goes to Fury to ask about her birth parents, Leo goes with her for emotional support.
  • When Doctor Octopus kidnaps Donatello and tells him to assist him with building a Coma Cannon, the turtle refuses. When Octopus threatens to kidnap one of his siblings, however, Donnie retracts and agrees.
• Big "NO!": Donnie shouts this when Stockman tases Petra and Raph.
• Bilingual Bonus:
  • Gambit uses several Cajun slang words when he meets Raphael.
  • Shredder's fake I.D. says his name is "Mr. Azamuku". Azamuku means "throw dust in eyes", or "deceit/deception".
• Blind and the Beast: After he's injured in a fight, a blind man allows Leo temporary shelter in his apartment. Subverted; the man former Captain George Stacy realized fairly quickly that Leo wasn't human, but he's a friend of Agent Coulson's, and agreed to keep the Turtles' secret... mostly because Leo saved Gwen Stacy's life.
• Blunt "Yes": Leo gives one to Stockman's question right before he knocks him out.
• Bread, Eggs, Breaded Eggs: While staking out a weapons warehouse, Mikey can't help but wonder what's being stored in some of the crates.
  Mikey: What do you think they keep here? Guns? Bombs? Guns that shoot bombs?
• Canon Welding:
  • The story uses the basic Spider-Man origin story, but with a new character (and the death of Aunt May). Due to the welding of Spider-Man canon and TMNT, some Spider-Man characters/locations are referenced (i.e. OsCorp) while Fury and Coulson play an important part in the story.
  • The fic welds several TMNT continuities together. It mainly uses the characterizations and locations from the 2003 series, but it uses the same origin story for Splinter as the 1987 series, and April is a journalist/reporter, much like she was in the films and first series.
  • Curt Connors, Baxter Stockman, and Otto Octavius were friends during their college years, and kept in touch until Octavius' lab accident (which supposedly killed him) and Baxter Stockman was fired after an argument regarding one of his inventions.
  • Downplayed; Splinter, Petra, and the Turtles know a little bit about SHIELD and the Avengers because they watched the Battle for L.A. on TV. The only Avengers they know of (before Black Widow hunts them down) are Iron Man and a big green guy. They supposedly know about the X-Men for similar reasons.
  • Much like in the Mirage comics, the same chemical that mutated Splinter and the Turtles was the one that hit Matt Murdock in the face and blinded him when he was a child. Fury knows about the connection but hasn't told either of them (as it's implied that he doesn't know Murdock is Daredevil).
  • Agent Coulson is a long-time friend of the Stacy family.
  • Bebop and Rocksteady ended up as a warthog and rhino, respectively after being hired by OsCorp as unwitting test subjects.
• Chekhov's Gun: At the end of Chapter 34, Norman Osborn acquires the severed tail of Leatherhead (which Spider-Ninja accidentally ripped off during a fight). In Chapter 40, the DNA samples taken from the tail are used by the Goblin and Dr. Phineas Mason to mutate Baxter Stockman.
• Child Soldier: The Hamato siblings count, as they are all well-trained, capable warriors... and none of them are over sixteen.
• Commonality Connection:
  • As little kids, Donnie and Pet hit it off because they both liked science and computers. By the second Time Skip, they're shown to share a lab and work on every invention together.
  • Splinter and Professor X become friends because they are both mutant men who lost everything and have spent their lives raising and training young mutants. Professor X even promises Splinter that he and the kids are welcome at his school whenever they want/need.
  • When they meet for the first time, April and Casey happily realize that they both like hockey (as April played it in high school).
• Composite Character:
  • Master Splinter is a combination of his incarnations in the original series and the 2003 series (having the same origin story as in the 1987 series while having the same personality and father-figure role as in the later series).
  • Rocksteady in this fic is a combination of his traditional depiction and the Rhino from The Spectacular Spider-Man. He still ends up as a rhino-man and is still Bebop's partner-in-crime, but his genetic makeup wasn't altered.
  • Doctor Curt Connors, once he transforms, is a combination of the Lizard and Leatherhead (with his mutated form being nicknamed Leatherhead by Mikey). Justified in that Curt added crocodilian DNA to his limb-growing serum along with lizard.
  • Averted with Alex O'Hirn. Despite him usually being the Rhino in most Spider-Man continuities, here he's an ex-con who turned his life around, while the position of Spider-Ninja's jungle-themed villain is filled by Bebop and Rocksteady.
• Cool Sword: Leo wields katanas as his weapon of choice. Raph's sais count as well.
• Curse Cut Short: A few times, most notably when a thug's implied Precision F-Strike was cut off by Casey Jones attacking him.
• Dead Person Conversation: Downplayed; while meditating, Splinter is approached by the ghosts of Richard and Mary Parker. They thank him for all he's done for Petra before vanishing.
• Death by Adaptation:
  • Ben and May Parker were killed by an armed bank robber when Petra was four.
  • Fury later reveals that the entire Kraang species was killed off before Splinter and the Turtles mutated. According to the absent Carol Danvers, this was the result of a massive battle between the Skrulls and Kree.
• Destroy the Security Camera: Raph destroys several security cameras with his sais while staking out Avengers Tower. It's later implied by Coulson that the teens do this before most of their fights.
• Drives Like Crazy: It is a Running Gag that Donnie is a terrible driver, to the point that he's all but banned from getting behind the wheel. The thought of him driving the Battle Shell scares his entire family.
• Dynamic Entry:
  • Baxter Stockman introduces himself by jumping out of a hole in the floor and burning Mikey's arm.
  • Donatello shows up at the factory fight by backflipping through a window, landing in a Three-Point Landing, then taking out a Dragon. Doc Ock does an even bigger one by crashing through the ceiling and then telling the Dragons to tell Hun that he quits.
  • The Green Goblin enters the abandoned warehouse by trapping Shredder with a giant magnet, then flying through a window on a glider.
• Empowered Badass Normal: Petra was raised alongside her brothers to be a ninja, thus she's skilled in stealth, hand-to-hand combat, and has mastered the use of her kama. That was before she was bitten by the OsCorp spider and developed her heightened senses, strength, speed, dexterity, healing factor, and ability to walk up walls. However, she admits that her brothers still beat her in spars as often as she beats them.
• Everyone Has Standards: The Green Goblin highly disapproves of Revenge by Proxy, as he's a father himself and tells Shredder that a good villain never makes anything personal. He even takes a moment to compliment Splinter's parenting skills.
• Extended Disarming: When she comes to meet with SHIELD, Petra is asked to remove her weapons. Reluctantly, she does so, first taking off her kama and web shooters... then pulls four kunai and half a dozen shurikens out of her jacket. Coulson and Romanov don't seem surprised, while Fury only seems concerned with whether or not that was all she was carrying.
• Five-Man Band: The siblings form this, with Leonardo as The Leader, Donatello as The Smart Guy, Raphael as The Big Guy, and Michelangelo as The Lancer. Petra, along with being the only girl, acts as an extra Smart Guy and Lancer.
• Furry Reminder:
  • To avoid getting an injury treated, Mikey goes into his shell. While his siblings clearly view this as normal, Dr. Connors stares for a second.
  • During a mission in the rain, Petra is shown to be thoroughly drenched and uncomfortable. Raphael doesn't have that problem, and internally states that there are benefits to being an aquatic reptile.
  • In one chapter, Leo, Raph, and Don aren't available for a mission because they're shedding ^note  Turtles shed their skin just like most reptiles . Spider-Ninja promises Agent Hill that she does NOT want to know.
  • Splinter reflects in Chapter 27 that he has better hearing since becoming a rat-mutant. Later, during his fight with the Shredder, Splinter hisses a few times.
  • Leatherhead sleeps with his eyes open, much like real-life alligators.
• Gender Flip: In this dimension, Peter Parker was born a girl.
• Gene Hunting: In Chapter 29, Petra decides to ask SHIELD to help her learn about her birth parents. Downplayed, in that she's known all her life that they're dead; she's merely curious about who they were. This is how she learns that they were SHIELD Agents Richard and Mary Parker, friends of both Nick Fury and Logan/Wolverine.
• Going for the Big Scoop: April has a reputation in the journalism community for doing this, to the point that Nick Fury respects her fearlessness. She shows this trait in Chapter 31, when she accompanies Agent Coulson (against his will) on an investigation. She later admits that she was reporting from Harlem the night that the Abomination tore through it, stating that the event was terrifying... but she got an amazing story out of it.
• The Guards Must Be Crazy: A prank call from Mikey convinces all of the security guards outside of Avengers Tower to abandon their posts after they're told that there are free doughnuts in the break room, allowing the siblings a better chance at staking out without being seen. This trope is taken even further when none of the guards thought to go check why all of the security cameras on the outside of the building were suddenly dead. What's more, when the guards realized they'd been tricked, they found out that they couldn't return to their station because someone had blocked the door with a Dumpster.
• Heel–Face Turn: While acting as a villain behind the scenes in Part 1, Doctor Octopus is a more active villain in Part 2... at least until Chapter 26. Donatello manages to shut off the AI that was driving Octavius crazy, allowing him to return to the man he was before his accident. He's grateful to Donnie, horrified at his actions, and spends the rest of the fic trying to make up for them.
• I Can Explain: When the five teens come home after sneaking off to Brooklyn in the middle of the night, Splinter is waiting for them. Leo tries to use this trope... It doesn't work.
• I Have Brothers: Petra shows numerous traits in common with her brothers (Leo's responsibility, Donnie's intellect/love of science, Raph's disregard for rules, Mikey's love of fun/jokes). Justified in that they and Splinter are the people she spends the most time with.
• I Know Mortal Kombat: Leonardo and Raphael are surprisingly good at doing interrogations, especially when using the Good Cop/Bad Cop technique. At first, Coulson and Hill think Splinter taught them this... only to be told that they really learned it from watching cop shows on TV.
• Idiot Ball: While explaining his limb-regrowing formula, Doc Connors starts talking too much and lets slip that the formula contains a mutagen. This tips off the Hamato teens that he added something to the serum he shouldn't have, which turns out to be Raphael's blood.
• I'm Taking Her Home with Me!: This is basically what happens when Splinter finds Petra in the storm sewers. Justified here because she'd just lost her family. Taking her in was the best thing Splinter could do for her.
• Internal Reveal: Chapter 16 is this, as Splinter explains the origins of himself and the Turtles to Nick Fury and Black Widow. ^note  It also doubles as a Shout-Out to the original cartoon, as the origin story they tell Fury is notably similar to the one given in that cartoon's first episode.
• Interspecies Adoption: Splinter (a human that was mutated into a rat) adopted four baby mutant turtles, and then five years later adopted a four-year-old human girl (who later gained spider powers). The teens all know that Splinter isn't their biological father but treat him as though he were.
• I Shall Taunt You: Being a Spider-Person, Petra does this once or twice. This tactic is key to her and the Turtles defeating the Juggernaut.
• Loophole Abuse: Splinter forbids his children from leaving the sewers to crime-fight for a while to avoid SHIELD learning anything else about them. Raph gets around this by saying that Splinter specifically said no crime-fighting. He said nothing about simply going up for fresh air.
• Mad Scientist: A few examples:
  • Doctor Octopus was one of these until his Heel–Face Turn. After that, he ceased to be this trope.
  • Doctor Baxter Stockman and Dr. Phineas Mason.
• Minor Injury Overreaction: At one point, Mikey ends up with an injured arm. He proceeds to freak out (going into his shell twice) when Donnie tries to treat it, even yelling out in pain before Donnie had touched it. His siblings' reactions imply that this is normal for him.
• Mythology Gag:
  • When leaping into a fight, Pet calls herself "your friendly neighborhood ninja".
  • While reading a copy of the Daily Bugle, Petra notes that Jameson, the newspaper's editor-in-chief, rubs her the wrong way for some reason...
  • Spider-Ninja and the Turtles take down Juggernaut the exact same way Ultimate Spider-Man defeated Kingpin.
  • Because they think she's a man, Bebop and Rocksteady interrogate Agent Coulson for the location of Spider-Man. Coulson has never heard of Spider-Man.
• Noodle Incident:
  • It's never explained exactly what Mikey did on the SHIELD Helicarrier, but Nick Fury doesn't want him there without one of his siblings ever again. All we know is that it had something to do with weapons testing.
  • At some point, April met Nick Fury. The reader is given no information about this incident, only that the former insists it was "just an interview", and the latter wants to avoid dealing with the woman as much as possible. The narrative later reveals that, whatever happened, it resulted in a non-disclosure agreement.
  • Donatello was the getaway driver for one of their patrols once... and only once. All we ever learn is that his driving was so bad that the rest of his family banned him from ever driving the Battle Shell again (although he still tries to when he thinks he can get away with it).
  • Whatever Gambit and Bobby did to make it snow outside the manor in late summer. According to Raphael, it had something to do with a contest.
• Nothing Is Scarier: Captain Stacy doesn't go into what exactly Dr. Mason did to get arrested and sentenced to life in prison, but he likens it to the scientist playing Dr. Frankenstein, and says that the crime scene was so horrifying that some of the cops needed therapy after. Considering what Ken Ellis said he was charged with, it's probably for the best that we not know what exactly happened...
• Oblivious to Love: When April and Casey first meet, Splinter, Raph, and Mikey can instantly tell the two humans like each other. Petra, however, only sees the two looking at each other strangely and ends up asking Splinter if they're okay. Splinter says that they're fine, and that Petra will understand some day (which just leaves her more confused).
• Papa Wolf: Master Splinter, full stop. Best shown during the fight between the Turtles and Spider-Ninja vs the Foot Clan, when Shredder tries to kill Leo while his back is turned. His blade is knocked out of his hand by Master Splinter, who then proceeds to give Oroku Saki the butt-kicking he royally deserves. Even the Goblin respects Splinter's dedication to protecting his kids.
• Platonic Co-Parenting: As April was the only other adult that the ninja siblings have regular contact with during part of their childhood, she and Splinter seem to have this relationship (even though April is only around ten or twelve years older than the teens). The siblings later get Fury to let April on the Helicarrier because she's an honorary member of the family.
• Pragmatic Villainy: Doctor Octopus plans to use non-lethal methods of experimentation on the Turtles as immediately dissecting them would just be incredibly wasteful, especially since there are only four of them in existence.
• Reasonable Authority Figure:
  • As strict as he can be, Splinter is willing to occasionally trust his kids' judgement. This is shown best when he allows the five of them to start acting as vigilantes once they prove themselves capable of fighting crime (although he does ground them all for a day as punishment for sneaking out in the first place, and revokes their crime-fighting privileges for their safety when he learns that SHIELD is after them). That said, he makes it very clear to Fury that whether or not his kids take SHIELD-issued missions is Splinter's call.
  • Nick Fury. He agrees to help the Turtles remain hidden from the public (and most of SHIELD) once he meets them. He's even willing to let them keep the exact location of the lair a secret (all he knows is that it's somewhere in the sewers) and agrees that Splinter, as the teens' legal guardian, gets the final say in what missions they accept.
  • Despite their not being mutants due to the X-Factor gene, Professor X invites the Hamato family to his school simply because he knows how much it means for mutants (especially kids and teenagers) to meet other mutants. However, while he's happy to let his students entertain their guests, he makes sure to tell Gambit not to blow up another piece of school property under threat of a month of detention.
• Secret-Keeper: April, Nick Fury, Agent Coulson, Black Widow, Dr. Connors, and a handful of trusted SHIELD operatives are the only people who know about the Hamato family, and Splinter wants to keep it that way. Connors even states that the Hamato family is one of SHIELD's better kept secrets. Casey Jones and the Stacys are later added to that list.
• Seinfeldian Conversation: Raph and Petra have a brief one about web-slinging. Petra thinks it's awesome and Raph doesn't.
• Sinister Scythe: Petra was trained in the use of kama, dual-wielded one handed war scythes. Even after gaining web shooters and spider powers, she still largely relies on her kama when fighting.
• Skewed Priorities: After she learns she's developed spider powers, Petra tells her family about going to OsCorp the day before. All Mikey can focus on is the fact that, of all the places she could've sneaked into, she picked a science lab?
• Stealth Pun: Petra's nickname (given to her by Mikey) is Pet. In other words, it's her pet name.
• Take That!: During Chapter 40, Petra admits to her family that her eyesight hadn't been too good before the spider bite, and remarks that she's glad she didn't need glasses, as she'd probably have to wear them over her mask. Donnie says that glasses with a bandanna would look pretty strange. The author admits that this is a dig at Donatello's design in the most recent TMNT film.
• Tap on the Head: Leo punches Stockman hard enough to knock him out. The next chapter revealed that the punch landed Stockman in SHIELD's med bay for a night.
• Tempting Fate: Donnie tells Mikey that their current mission "isn't some superhero cartoon where the bad guys send a huge killer robot to do their dirty work for them." Guess what happens later in the same chapter?
• "The Reason You Suck" Speech: The Green Goblin gives one to the Shredder, and rips apart his reasons for going after the Hamato clan while also making it clear he disapproves of Shredder going after Splinter's kids just to hurt his enemy more. It ends with Goblin stabbing Shredder through the chest.
• That Man Is Dead: In this story, Splinter was once the human Hamato Yoshi. When Nick Fury asks him which name he prefers, he states that he only goes by Splinter. That said, he doesn't object to Petra using the last name Hamato or having Fury address them as the Hamato family.
• They Would Cut You Up: Zig-Zagged:
  • The robot at Avengers Tower, after SHIELD took possession of it, was completely disassembled and studied by SHIELD scientists.
  • Averted (thankfully) with the Turtles, as Connors quickly realizes that the Turtles are not only sentient but teenagers, and he considers it wrong to experiment on adolescents. This didn't stop him from stealing a sample of Raph's blood, however.
  • In Chapter 26, Doctor Octopus of all people points out why this trope is a bad idea:
  Doc Ock: Please, there are nonlethal methods of experimentation. I thought you were smarter than that. As far as I know only four of your kind exist; killing one of you for study would be foolish.
  • In Chapter 40, Captain Stacy invokes this trope, stating that Dr. Mason is unstable and would likely perform experiments on the Turtles if he managed to catch them.
• Trademark Favorite Food: Like in canon, the Turtles love pizza.
• What the Hell, Hero?: Leo, when Petra tells them about getting bitten by the spider, is upset at her for not telling them about it until the next day, seeing as how the spider could've been deadly. Raph gives him one of these in the same conversation, pointing out that Petra didn't tell them about being bitten because she was seriously ill for almost a day, and tells him to back off. Even weeks later, Leo is still upset that Pet sneaked into a science lab.
• With Great Power Comes Great Responsibility: Petra says this word for word when she explains to Fury why she and her brothers fight as vigilantes. Only this time, it was Splinter who taught her this, not Uncle Ben.
  Petra: We're not a threat; we're not fighting crime for glory or money or anything. Most of the time, people don't even see us in action. We do it because we have the ability to protect people, and because it's the right thing to do. With great power comes great responsibility.
• Workaholic: It's implied that Leo can be this, spending more time training than any of his siblings.
• Written-In Absence: Chapter 22 reveals that Agent Hill wasn't in the first part of the story because of a month-long undercover assignment in Madripoor.
• Villain Episode: Chapter 17 and Chapter 28.
• Vitriolic Best Buds: After Raphael defeats Casey in a fight, the two become this trope.

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