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Battle Nexus residents

     The Ultimate Ninja 

The Ultimate Ninja

Voiced by: Ted Lewis, Sam Riegel (child)

Ultimate Ninja: Beware warrior! I am comming.

A warrior who comes to Earth to challenge Leo to mortal combat.

  • All There in the Script: Concept materials, as well as his action figure, call him "Ue-Sama".
  • Antagonistic Offspring: The son of the Daimyo.
  • Artificial Limbs: Specifically, his left hand.
  • Back for the Finale: After not appearing since Season 4, he and his father make a cameo at the end of the series finale watching Casey and April’s wedding.
  • Bitch in Sheep's Clothing: In his second appearance. He acts friendly to the Turtles and claims to be regretful of his actions toward them, but it's soon made clear he hasn't changed one bit; he's conspiring to murder his own father to steal his War Staff, and goes so far as to shoot Leo with a poison dart out of petty spite for losing to him.
  • Befriending the Enemy: After his revival, the Ultimate Ninja still remembers Leonardo, albeit vaguely. As a result he becomes friends with him.
  • Combat Pragmatist: Best shown in his debut episode. The Ultimate Ninja is more than happy to comply with the rules of combat that benefit him, such as excluding Leo's family from the fight, but the minute he's losing, he's perfectly willing to cheat and do whatever it takes to win.
  • Death by Adaptation: In Mutant Nightmare, the game simply ends upon Ultimate Drako’s defeat, without adapting his resurrection from Lord Simultaneous.
  • Even Evil Can Be Loved: Despite his trying to murder his own father to gain power and the War Staff, the Daimyo still loves the Ultimate Ninja and deeply mourns his disappearance, falling into a depression.
  • Even Evil Has Loved Ones: At the last minute, disagrees with Drako's plan to kill the Daimyo because some part of him does actually love his father.
  • Evil Is Petty: Shooting Leo with a poison dart has nothing to do with his plan to obtain the War Staff and take over the Battle Nexus. He does it purely out of spite and wounded pride for Leo defeating him in their duel, a duel he challenged Leo to in the first place.
  • Everyone Calls Him "Barkeep": This guy is never identified by name, except as Drako when he merges with him in the third season. His action figure and casting sheets state his true name is Ue-Sama.
  • Fusion Dance: With Drako during the third season.
  • Meaningful Rename: “The Ultimate Ninja” is what he calls himself after he believe he's defeated Leonardo.
  • Redemption Earns Life: His disagreement with Drako gets him killed as it causes him to lose the War Staff and the Time Scepter, and the Time Scepter turns him to dust. But since there was some potential for good in him, Lord Simultaneous brought him back as a child.
  • Small Name, Big Ego: While he's a skilled fighter, his arrogance far outstrips his ability to back it up.
  • Sore Loser: Attempts to kill Leonardo after being officially defeated.
  • Taken for Granite / Literally Shattered Lives: This is how he initially dies after "Same As It Never Was" and "The Real World", but he's brought back to life as a child; Drako stays dead.
  • Party Scattering: He and Drako as Ultimate Drako are the ones responsible for sending the Turtles and Splinter across time and space.
  • Raise Him Right This Time: After he is killed Lord Simultaneous revives him as a child. It's implied the Daimyo will do this.
  • True Final Boss: For Mutant Nightmare. The adaptation of the Ultimate Drako arc is set after the adaptation of “Exodus”, which was the campaign’s final story arc.
  • The Unfavorite: In a sense. He's very pissed off that his father shows others more respect than him.
  • Used to Be a Sweet Kid: When revived as a child, we see he was a much nicer person in his youth.
  • Walking Armory: Swords, Wolverine Claws, chain and sickle, shuriken, blinding dust—the works.

     The Daimyo 

The Daimyo

Voiced by: Marc Thompson

Daymio: To use such dark arts in defeat, not only would disgrace yourself, but you also would disgrace me, your own father, with your lack of honor.
Ruler of the Battle Nexus and The Ultimate Ninja's father.
  • Authority Equals Asskicking: Even without his War Staff, he cut a dragon conjured by his son in half.
  • Back for the Finale: He and his son make their first appearance since Season 4 in the series finale watching Casey and April’s wedding.
  • Benevolent Mage Ruler: Via the War Staff, he is for practical purposes all powerful, and he rules a nexus with a strong sense of honor and fair play.
  • Cool Mask: Spends most of his time wearing a gold one.
  • Everyone Calls Him "Barkeep": His true name is never identified.
  • Gentle Giant: Sometimes, given his size.
  • The Good King: He is well-regarded across the multiverse.
  • Large and in Charge: The rule of the Battle Nexus, and is a very big guy.
  • Long-Lived: We don't know how old he is but he's made out to be ancient, probably the oldest character in the series next to Lord Simultaneous.
  • Reasonable Authority Figure: He's the fair and noble ruler of the Battle Nexus. That goes out the window come Season 3, due to bitterness over the loss of his son; when Leo approaches him for help getting back home, the Daimyo instead blames him and his family for his son's disappearance and tries to have him imprisoned forever.
  • Sanity Slippage: In the third season, it is clear he has not taken the loss of his son very well.
  • Story-Breaker Power: With the War Staff, he is effectively an all powerful sorcerer. Hence episodes that feature him have to involve some kind of Drama-Preserving Handicap, like him getting injured, not being well mentally over the loss of his son, or his son being held prisoner.
     The Gyoji 

The Gyoji

Voiced by: Pete Zarustica

Gyoji: If the warrior named Leonardo refuses the match, then your lives are forfeit.
The referee of the Battle Nexus Tournament and a loyal servant of Daimyo.
  • Canon Immigrant: He would later appear in the Mirage Comics.
  • Meaningful Name: A gyōji (行司) is a traditional referee of the art of sumo.
  • The Reveal: See Unexplained Recovery below.
  • Out-of-Character Moment: His entire appearence in "The Real Wolrd" part 2. In all his previous ones, he's generally emotionless and apathetic to the situation, only caring when the rules of the Battle Nexus Tournament are broken by a contestant. In "The Real World" part 2, he genuinely shows emotions and cares about Daimyo, tho that was probably on purpose, since it's later revealed that he is infact Ultimate Drako.
  • The Stoic: He rarely, if ever, shows any emotions.
  • Unexplained Recovery: In "The Battle Nexus" part 4, he gets sucked into a vortex and presumably dies. In "The Real World" part 2, he returns without an explanation, tho it's revealed that he is infact Ultimate Drako in-disguise.
    • Even if we put aside this one, he still reappears in "Grudge Match" from season 4 without an explanation.
  • The Un-Smile: When it's revealed that Ultimae Drako is masquerading as him, he smiles.
  • Voice of the Legion: A heroic example.

     Dark Ninja Assassins 

Dark Ninja Assassins
Mercenaries who work for Drako and the Ultimate Ninja.
  • Chain Pain: Some of them use chains as weapons.
  • Combat Pragmatist: They're skilled fighters, but don't pass up on a chance to try and take out an unconscious opponent or shoot Leonardo In the Back with a crossbow.
  • Cool Sword: One of them has an impressive jagged sword.
  • Dark Is Evil: They're clad in black from head to toe and work as assassins.
  • Deadly Disc: One of them throws spiked discs at Leonardo.
  • Elite Mooks: They're decently skilled fighters, and while Usagi and the Turtles can take them down eventually, the Dark Ninja Assassins generally manage to match them blow for longer than the average Foot Ninja would. When Usagi slices the chain one of them is using in half, the ninja adapts by lashing out with both halves of the chain (one in each hand) and is temporarily able to constrict Usagi this way.
  • Frame-Up: They try to kill the Daimyo with Leonardo's swords to frame him for the crime.
  • Insectoid Aliens: It's never shown what's under their costumes, but they're implied to be humanoid insects, given the spikes on their arms and legs and how they make sounds like cockroaches when they enter or leave a room.
  • Karma Houdini: After their Sickbed Slaying of the Daimyo is foiled, they retreat and are never seen again.
  • No Name Given: They're never called anything except "assassins."
  • Oh, Crap!: They're visibly frightened when apologizing to the Ultimate Ninja for their failure to kill Leonardo.
  • Red Eyes, Take Warning: They're skilled assassins with glowing red eyes under their masks.
  • Siblings in Crime: There are about twenty of the assassins, and a line from The Ultimate Ninja reveals that at least some of them are brothers.
  • Spikes of Villainy: They're remorseless assassins, and each of them has three spikes sticking out of each arm and leg.
  • Wall Run: The Dark Ninja Assassins can run straight up walls with no signs of difficulty.
  • Whip It Good: One of their better fighters uses a whip in combat.


Tournament contestants



Voiced by: Marc Thompson

Drako: My patience, young lord, is at an end.
A Battle Nexus Championship contestant who was defeated by Splinter years ago.
  • Arc Villain: For the Battle Nexus arc.
  • A Dog Named "Dog": He's a red dragon named Drako.
  • Evil Sounds Deep: His deep voice is only rivalled by Daimyo's.
  • Fusion Dance: Merges with the Daimyo's son in Season 3.
  • Genius Bruiser: Turns out while both he and the Ultimate Ninja intended to steal the War Staff, only Drako actually studied how to use it.
  • Hate Sink: Blatantly cheats, resorts to murder upon losing, betrays his partner in crime, and is generally antagonistic toward everyone. Lord Simultaneous doesn't even restore him to life after bringing the Ultimate Ninja back.
  • Killed Off for Real: Petrified and destroyed once the clan reunites and defeated him and the Ultimate Ninja. Though Lord Simultaneous revives his partner, Drako is not so lucky and never returns.
  • Our Dragons Are Different: Resembles an Asian dragon, though he doesn't fly or have any form of Breath Weapon.
  • Party Scattering: He and the Ultimate Ninja as Ultimate Drako are the ones responsible for sending Donatello to the infamous "Same As It Never Was" universe with the Shredder ruling all, while Leo winds up with Usagi Yojimbo.
  • Sore Loser: Attempts to have Splinter killed after having lost the Battle Nexus Tournament.
  • Spared by the Adaptation: In the video games. While the Shredder remains the final main campaign boss of Mutant Nightmare since it adapts the season 3 finale “Exodus” as the endgame, the Party Scattering arc still takes place in the “Nightmare” episode that is explicitly set after the events of “Exodus” in the game’s timeline; in the adaptation of “Same As It Never Was”, Donnie says the future Shredder is a different person than the one they defeated in the “Exodus” adaptation. Therefore, Drako doesn’t die until technically later in the timeline than his show counterpart did.
  • Taken for Granite / Literally Shattered Lives: This is how Drako finally meets his end after he scatters the Hamato Clan (one of whom, Donatello, gets to witness what will happen should main Big Bad Ch'rell/The Shredder prevail) and is confronted for it. The Ultimate Ninja is brought back to life, but Drako isn't.
  • True Final Boss: The main campaign of the Battle Nexus game ends with the Shredder as the final boss in an adaptation of “Rogue in the House”. However, the Battle Nexus tournament is portrayed as another story set after the campaign, in which Drako serves as the final opponent. It happens again in Mutant Nightmare, where as Ultimate Drako he is the final boss of the “Nightmare” episode set after the main campaign.



Voiced by: Ted Lewis

Kluh: I am going to crush you, turtle boy.
A Battle Nexus Championship contestant with an animus towards Michelangelo.
  • Ambiguously Evil: While he eventually tries to kill Michelangelo for purely selfish reasons, he also formed part of Traximus' rebel army, which makes it rather hard to get a sense of him.
  • Badass Baritone: Thanks to the perfomance of Ted Lewis.
  • Lightning Bruiser: Like Hun, he is massive, but also very fast.
  • Sdrawkcab Name: The character is meant to be a homage to the Hulk.
  • Sore Loser: Although he has a point about only losing on a technicality, it eventually becomes clear that he doesn't really give a damn about the Battle Nexus Championship or its rules.
  • Super Mode: Inverted, more or less, as he spends way more time in his hulked-out form than he does in his smaller state.

D'Jinn: You four should be honored to have such as Splinter as your sensei. He's something of a legend here.
A Battle Nexus Tournament contestant, who's an old friend of Splinter.
  • Badass Beard: He can handle Splinter (for a while at least) and has a beard.
  • Canon Foreigner: He was created for this series.
  • Gentle Giant: When the Turtles see him for the first time, he towers over Splinter, but he's really nice.
  • Good All Along: When the Turtles first see him, he is in a battle with Splinter, so they rush to defend their sensei. He later reveals that all of this is a part of the Tournament and that he's good friends with Splinter.
  • Mr. Exposition: Downplayed, but he explains to the Turtles how Splinter became a legend in the Battle Nexus.
  • Multi-Armed and Dangerous: He has four arms, but he isn't evil.
  • Nice Guy: After his battle with Splinter, he's shown to be friendly and respectful.
  • What Happened to the Mouse?: After his brief appearence in "Battle Nexus" part 1, he's never seen again.
  • Worthy Opponent: After Splinter defeats him, he shows his respects to the Turtles' sensei.
     Other Notable Contestants 

A contestant of the Battle Nexus.
  • Absurdly Sharp Claws: His main form of attack.
  • Ambiguous Situation: Is he supposed to be the same monster from Kirby's world or a completely different character?
  • Attack! Attack! Attack!: He relentlessly attacks his opponents, which comes to bite him, when he fights Ia.
  • Victory Pose: Dieskrad lifts his arms in a triumphant pose after being the first competitor to eliminate his opponent.
  • Humanoid Alien: Aside from his humanoid appearence, he has nothing in common with humans.
  • Reused Character Design: Whether he's the same character or not, he resembles one of the monsters Kirby drew.
  • Sdrawkcab Name: Dieskrad / Darkseid (however, this is more of a Shout-Out, as they have nothing in common).
  • Sore Loser: Dieskrad wails angrily and repeatedly punches the ground after being eliminated from the tournament.

Ia in a battle against Dieskard
A Battle Nexus contestant, who faced Mikey.
  • Action Girl: She may be the only female competitor, but la makes it to the final four, defeating some pretty skilled opponents in combat.
  • Blade on a Stick: Her Weapon of Choice. Without it, she's easily defeated by Mikey.
  • La Résistance: In "Space Invaders" part 3, it's revealed that she has joined Traximus' rebellion alongside Kluh.
  • Noodle People: She has exaggerated long and thin limbs.
  • Offscreen Moment of Awesome: la's victory during the first round isn't shown but by default, she was up against a very tough-looking humanoid tiger creature who isn't seen fighting anyone onscreen and doesn't make it to round two.
  • Smurfette Principle: Seems to be the only female contestant of the Battle Nexus Tournament.
  • The Voiceless: She never speaks in her appearences.

A Battle Nexus Contestant, who faced Raphael.

A Battle Nexus Contestant, who faced Kluh.
  • An Arm and a Leg: He appears to be missing his left arm.
  • Handicapped Badass: Despite being one-handed, he's still capable in a fight, reaching the semifinals..until he's defeated by Kluh.
  • Oh, Crap!: His reaction after Mikey switched their lots and he realized that he's facing Kluh.
  • Weapon of Choice: His butterfly sword.
  • The Worf Effect: In "Battle Nexus" part 3, he gets quickly defeated by Kluh, which shows how powerful Kluh is.

A Battle Nexus contestant, who defeated Donatello.
  • Blood Knight: He has an eager smile when he fights Donatello.
  • Fighting with Chucks: He fights with a variant of nunchucks: three pieces of wood attached to each other by two chains.
  • Long Neck: His neck is about the size of his upper arm.
  • Noodle People: He's even thinner than Ia.
  • Small Role, Big Impact: He's eliminated fairly quickly and with little fanfare, but not before he knocks Donatello out of the tournament, which results in Donatello being available to protect Leonardo and the Daimyo from assassins.




Voiced by: Brian Maillard

Ammag: Kluh! Tear him apart!
Kluh's father, who's furious at his son's defeat at the hands of Michelangelo. Due to this, he arranged a rematch between Kluh and Mikey, which will determine the real winner of the Battle Nexus Tournament.
  • Badass Baritone: Much like his son, he has a very deep voice.
  • Badass Beard: He has a beard.
  • Backwards Name: Ammag / Gamma. Runs in the family, as he's the father of Kluh / Hulk
  • Be Careful What You Wish For: He wanted to turn the rematch between Kluh and Michelangelo into a Duel to the Death. He never anticipated the consequences Kluh would lose.
  • Hoist by His Own Petard: Ammag saw to it that the laws of the Battle Nexus were magically altered so that Kluh could kill Mikey in the ring. In the end, though, the tables are turned.
    Daimyo: Gaze what you have done, Ammag. Now, your son's life hangs in the balance. I will let Michelangelo decide your fate and the fate of your son.
  • Laser-Guided Karma: He turns Mikey's match with Kluh into a Duel to the Death, and kidnaps the Daimyo's son to keep him from restoring the safety spells. Leonardo saves the boy and Mikey turns the tables on Kluh, and Daiymo leaves up to Mikey as to whether or not Kluh and Ammag will die for their transgression. Luckily for them, Mikey decides against killing them.
  • Nice Job Fixing It, Villain!: If Ammag hadn't tampered with the battle, Kluh would have won, but by forcing Michelangelo to fight for his life, Kluh gave him the time and the incentive to pull out a win—and not by a technicality this time.
  • Not Helping Your Case: He says that the Daimyo considers Levrams to be barbarians. Whatever the Daiymo's reasons were, the Levrams likely reinforced them by turning a Battle Nexus Tournament match into a Duel to the Death.
  • No One Could Survive That!: Ammag says this when Leonardo reappears, appearing to have defeated the multiple Levram warriors, who were sent to take him out:
    Ammag: No one could defeat three Levram warriors! Impossible!

The Battle Nexus: Video Game-Only Characters



Voiced by: Jason Griffith

A scythe-wielding samurai-esque mercenary whose name is known throughout the universe.

  • Canon Foreigner: One of the most significant additions to Battle Nexus.
  • 11th-Hour Ranger: In the campaign, he comes to the aid of the Turtles, Splinter, and Zog in the final mission. Gameplay-wise, the player has likely already had him unlocked as a playable character for quite some time.
  • Heel–Face Turn: After serving as an adversary most of the game, he becomes an ally towards the end of the game once the Turtles help him remember his past.
  • High-Altitude Battle: The second battle against him takes place on a glowing platform suspended in mid-air. Incidentally, this level is also titled 'Air'.
  • Immune to Bullets: And lasers, and shuriken, and seemingly any other projectile. The cutscene before his first battle establishes this by having a squad of Federation soldiers open fire on him to absolutely no effect.
  • Meaningful Name: A pretty obvious one. A guy wielding a scythe whose name sounds like the word 'slasher'.
  • Noble Demon: He’s a ruthless mercenary when on the clock, but he still has a sense of honor and eventually joins the good guys.
  • Recurring Boss: Slashuur is fought twice in the story of Battle Nexus, and can optionally be fought a third time in Tournament Mode.
  • Rush Boss: Slashuur has much lower health than most bosses; however, he more than compensates with his teleporting, immunity to projectile attacks, and most dangerously, Life Drain on his attacks that can make him several times tougher than his health bar might suggest if the player isn't careful.
  • The Reveal: He is actually an Utrom wearing Powered Armor, much like The Shredder/Ch'rell.
  • Secret Character: You can unlock him as a Playable Character.
  • Sinister Scythe: His Weapon of Choice.


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