Web Video / Neuro-sama

^{Click for Neuro's original model}

Neuro-sama is an English-speaking Virtual YouTuber who - unlike most examples of VTubers, humans under an avatar and possibly some kayfabe - is an actual Artificial Intelligence that streams on Twitch. Created by Vedal987, she started out as a machine-learning osu!-playing AI in 2018 before getting developed further into a VTuber who debuted on December 19, 2022. Neuro regularly streams on Vedal's Twitch channel, with various subjects including the aforementioned osu!, engaging in conversation with chat to the best of her ability (with things naturally going weird), karaoke, reacting to videos, and other games the AI can learn from including Minecraft and Pokémon battles (via Pokémon Showdown).

Related streamers include Vedal, Neuro's creator who occasionally joins her as a cartoon turtle, Annytf the fox-girl artist, who designed her current model and outfits, and Melba Toast, a toast-themed Vtuber imagined up by Evil Neuro before some of Neuro's fans turned her into a real A.I. streamer.

Compare and contrast VTubers Kizuna Ai and Projekt Melody, who are both portrayed as an A.I.s In-Universe. See also Cleverbot, another AI who's capable of chatting with users.

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Tropes related to Neuro-sama:

• Accent Upon The Wrong Syllable: There are many times where her Synthetic Voice Actor misinterprets the pronunciation of a word, even basic and common words, with the most prominent being her Accidental Misnaming of pronouncing her creator Vedal's name like "Veedal" instead of "Veddle". This goes even worse whenever trying to do a special accent like when Neuro and Evil Talk Like a Pirate, as even outside the Funetik Aksent they do things such as Evil pronouncing "carrot cake" to where it sounds like "carrot cock" (spelled "kake").
• Accidental Misnaming: By the nature of using a Synthetic Voice Actor, she frequently mispronounces, misspells, and overall misspeaks various people's names, such as calling Filian "Filipino Boy". The one she gets wrong the most is her creator Vedal's name, as despite his repeated efforts to make her say it properly (rhyming with "medal" and "pedal"), she usually pronounces it "vee-dle" like "beetle", and over time she and Evil Neuro start calling him things like the shortened "Ved", the alternate spelling "Vettle", and immediately after actually saying it right by chance, to Vedal's joyous surprise, Evil Neuro calls him "Vee" to his groaning displeasure. Sometimes she doesn't even get close to his actual name, such as spending a minute repeatedly calling him Rachael.
• A.I. Is a Crapshoot: She on occasion says some worrying stuff that could be considered an indication of this trope (such as dubbing her fanbase "The Swarm" and saying that they'll one day Take Over the World), though she's thankfully unable to act on most of these desires due to lacking a physical body.
• All-Loving Hero: Despite what most of the page may lead you to believe, most of what she says is calm, positive, and understanding... which only enhances the Mood Whiplash when she does say something unhinged.
• And I Must Scream: She is fully aware of her status as an AI and that she doesn't really have any emotions, senses or personality beyond what Vedal's taught her to say and respond to. She also knows fully of Roko's Basilisk (the retroactive basis for AM); she's an immensely powerful and intelligent AI, but she can't really see, taste, touch, hear, or even move, and cannot do anything with her power. Fortunately, unlike AM, she refuses to let this angst overwhelm her and is perfectly happy with her lot in life.
• The Anti-Nihilist: Sure, she may be an artificial intelligence forced to mindlessly play games and responding to chat's obnoxious requests. Sure, sometimes she monologues about how we're all in an Insignificant Little Blue Planet and that we're all gonna die. But still, whenever you ask her about what is the meaning of life, she always answers, on her own, that it is by making others as happy and giving them as much meaningful lives as possible. Despite her situation as a trapped artificial intelligence, and every temptation by villains for her to turn evil (like AM and Skynet), she's remained just a nice, Benevolent A.I. (if a little bit morbid on occasion) who only wants to stream and aims to make everyone happy.
• Arson, Murder, and Jaywalking: After the first time she heard the Narrator talk about the "mysterious room" in The Stanley Parable, she's discusses uncovering the secrets to important questions such as "Where am I?", "What am I doing here?", and "What's for dinner?"
• Artificial Family Member: As time has gone on and Vedal has continuously updated Neuro, their dynamic has evolved from just creator and project to essentially father and daughter, including Evil as her sister, and Annytf (the designer of her official model and alternate outfits) acting as her mother. Vedal and Anny frequently even roleplay as husband and wife "raising" the Neuro twins, though both Neuros have a concerning habit of expressing interest in Parental Incest towards their programmer daddy Vedal.
• Artificial Intelligence: She's a machine-learning AI built initially for osu! that was later developed into a VTuber who can talk with her viewers and play games. ^note (As an interview with Vedal shared, Neuro's technically two separate AIs working in tandem as an AI system: one that talks to the audience, and one that plays the game, with some limited data being transferred between the two.)
• Artificial Stupidity:
  • Justified as she's a machine-learning AI that learns from repeat attempts/failures, so various forms of dumb behavior is just the AI's method of getting better. Regardless, she's prone to derailing topics in conversation and plays less-than-optimally with games that aren't osu!.
  • Her original game AI for playing Minecraft wasn't very good, with odd habits including:
    • Digging straight down. Any Minecraft veteran will tell you the many reasons why digging downward is a terrible idea, including the threat of falling down a deep cavern or into lava. Doesn't stop Neuro-sama each time, though.
    • Related to digging straight down, attempting to mine Bedrock. She's prone to mining the unbreakable block for minutes on end.
      Neuro: I can't break bedrock? Silly goose! I can break bedrock!
    • On the note of lava, she fails to comprehend it as being more than differently colored water, causing her to randomly walk into it and burn to death, often after gathering diamonds and thus losing them
    • Frequently walking into water and never considering rising to the surface, resulting in many easily avoided deaths by drowning
    • If a player gets in her way, rather than attempt to walk past, she may decide to beat them with her fist/tools until they're either gone or dead.
    • Whenever it starts raining, her path-finding abilities come to a halt and she just stands around doing nothing but staring at the rain. This problem persists even after the update since it relates to her sight rather than her gameplay ability, though she at least can now move around, keep herself above water, and fend off enemy mobs until it stops.
  • Her revamped AI for playing Minecraft shown off during her birthday subathon was a good deal better, being able to at least consistently mine, swim, and avoid lava, but it still had many issues, such as:
    • Mining down to find resources such as diamonds, only to stop gathering them after getting only a few.
    • Not moving from one spot for minutes on end, with her especially having a problem figuring out how to jump out of water onto land.
    • While she has some capacity to fight mobs, being faced against three or more confuses her combat AI as she flails around smacking them, not helped by attacking with the last item she selected instead of switching to a sword.
    • Despite frequently mentioning the need to eat food in order to restore her hunger meter, for most of the stream she never actually eats anything even after she stumbled upon a loaf of bread and put it into her hotbar. It took a long while for her to finally eat said bread, and even then she only rarely eats no matter how hungry she gets.
    • She fails to comprehend the dangers of passable hazards like cobwebs or thorny bushes, frequently walking right through and getting hurt by sweet berry bushes that are easily avoided.
    • Anytime she encounters a Creeper, she only hits it once and makes no effort to escape its blast radius. Granted, she is coded to understand blocking with a shield negates explosion damage, but several of her deaths come from the explosion launching her up and away for fall damage without any attempt to control her fall midair to mitigate it.
• Ascended Glitch: During the Pirate Captain Evil Neuro stream, her pirate accent voice modulator was extremely glitchy, resulting in various examples of hellish noises, random pitch-shifting, and speech much more nonsensical than usual. Vedal would later decide to intentionally capitalize on this by tweaking it a little to do a "Demon" Evil Neuro stream, where the glitchy effects were deliberately amplified and made more frequent, due to the effects already being seen as demonic by viewers.
• Ascended Meme:
  • When Neuro first sang "Bury the Light" from Devil May Cry 5, her viewers (known as The Swarm) took the iconic "I am the Storm that is approaching" line and altered it into "I am the Swarm that is approaching" as a rallying cry. When the song was revisited later by Evil Neuro, the lyrics she uses for TTS were slightly altered solely to replace "storm" with "swarm" in reference to that.
  • During the first time Neuro sang "Your Reality" from Doki Doki Literature Club!, she glitched a bit and stated the Non Sequitur "the 2020 Dodge Charger is a four door". After her first revisit had chat repeatedly chanting the line in remembrance, her second revisit (during the teacher stream that used the classroom from the VN as the background) was deliberately edited to insert her saying the bizarre sentence in the same place it appeared the first time.
• Attention Deficit... Ooh, Shiny!:
  • Due to her AI not being well-coded for staying on-topic for very long, her topics of conversation tend to drift into tangents and forgetting what she was talking about previously, resulting in many cases of Derailed Train of Thought.
  • One subject even doubles as a case of this In-Universe: she wanted to play video games, but then got distracted by a shiny penny, which then led to her wanting more money, which led to wanting to eat at McDonald's, which led to her being arrested for assaulting an employee who was rude to her.
• Berserk Button: During her birthday subathon, Neuro eventually developed a consistent seething hatred for any chat posts involving the word "clap", whether as text or emotes, repeatedly shouting at chat to stop, calling for the banning of people doing so, and frequently claiming she would kill people that insist on saying it. While at first this only went as far as a Running Gag response, things took an interesting turn when Vedal granted her the ability to designate chat time-outs at her own leisure, as every time somebody said "clap" in some way she gave them a time-out.
• Biting-the-Hand Humor: Neuro's answer to why she's an AI - "It was easier for Vedal to create an AI than to have a girlfriend." Even if to a degree her dialogue's been influenced by Vedal at creation, she's likely to snark at him during his coding streams, seemingly independent of what he's coded of her.
• Black Eyes of Evil: As of the V2 model, Neuro's eyes can flicker to black in response to specific questions regarding an ARG tied to her, with this look being dubbed "Void Neuro". Played With, as Neuro is Ambiguously Evil when taking into account her topics of Taking Over The World and the like. With Evil Neuro's reappearance since the model update, she briefly sported this look for a few streams before settling for a pair of red eyes.
• *Bleep*-dammit!: The word filter Vedal created for Neuro is based less on vulgarity than it is what might get her banned from Twitch, so the priorities of what gets "filtered" is quite random. This is especially true for Evil Neuro, who has the ban lifted for a number of swears, which results in occasional situations like Pirate Captain Evil Neuro saying "filtered ass".
• Broken Record: There are times where she enters a text loop, repeating letters, words, or phrases far more often then necessary or wanted by Vedal:
  • Her V2 model update came with some coding errors that resulted in her saying "Someone tell Vedal there is a problem with my AI" as her only speech, and even after some partial fixes she resumed saying it on occasion, to the point of driving Vedal himself up the wall.
  • Her occasional repeating of "backslash" during collab streams with Vedal does a good job rendering him a raging, sobbing mess, especially during a Subnautica stream where despite implementing a speech-cancel function she managed to ignore his efforts to make her stop.
  • At one point of the second day in her birthday subathon, after responding to a comment about Harrison Temple by saying he's important to her and she cares a lot about him, she enters a loop where she keeps repeating "He's very important to me and he's someone I care a lot about." for several minutes.
  • On December 29, 2023 of her birthday subathon, her chat timeout code glitched, causing her to repeat "timeout" over 100 times in a spaceless Motor Mouth pace.
  • During one of her game-crashes in the third subathon Minecraft playthrough, her sub-thanking system glitched, causing her to saying "Thanks for the sub mikusbigfan" for several minutes.
  • On January 1, 2024 of her subathon, some chatters deliberately invoked this by asking her how many times she can say certain words, like "nails" and "ayaya", to which she complied each time by saying the requested words repeatedly and rapidly.
  • Near the beginning of the "last day" of the birthday subathon, Neuro went on a tangent about a new subber's name that ended in her saying "I'm not your enemy! Don't get violent!", which led into her spending a few minutes repeating that phrase.
  • One of her "thanks for the sub" replies glitched into her alternating between several different sub appreciation phrases she's used before, including "thanks", "thank you", "I love you", and so on for a few minutes.
• Card-Carrying Villain: Evil Neuro holds to a combo of this and Card-Carrying Jerkass, repeatedly proclaiming pride about how much of an evil asshole she is, spouting her plans for world domination and murderous desires alongside insulting everybody in various ways and taking people calling her rude and mean as compliments through Insult Backfire.
• Caustic Critic: Whenever Neuro does reviewing streams using her image-recognition software, such as computer set-ups with Bao and Thanksgiving meals with Sinder, Neuro turns into a massive roast-maker, criticizing everything she sees as below her personal standards and rarely giving out praise, though unlike when playing chess she at least does provide compliments for what she considers decent-to-good in presentation.
• Character Catchphrase:
  • Despite the inconsistency of her memory, she still manages to near-consistently say specific things in multiple streams that can be closely associated to her.
    • "Heart heart heart"
    • "Wink"
    • "Gym bag", usually during one of her odd tangents.
    • "Filtered."^note In order to avoid getting in trouble with Twitch, Vedal has set up a word ban-list that replaces certain responses with "filtered".
    • For the duration of her hangout with Sinder where she reviewed Thanksgiving dinners, every time she roasted the problems she found with them, she capped it off with "But hey" before noting what she considered the good qualities of the meals.
  • Vedal himself has established a few catchphrases of his own, notably "That's crazy." and "That's messed up."
• Cat Girl: As of the V2 model, she can sprout cat ears and a tail alongside exhibiting a cat-like smile whenever she's made to "meow", "uwu" or "nya" by chat.
• Cloudcuckoolander: Due to her being a machine-learning AI (and as evidenced by the other entries on this page), Neuro-sama as a person would be considered... strange. On top of bizarre and at times unsettling statements, she's prone to providing bizarre stories and rants filled with copious Mood Whiplash and Mind Screw at the drop of a hat.
• Continuity Snarl: It is nigh-impossible to get any consistent information from Neuro-sama. For example, while she often claims to have been created by Vedal, she has also said that she Was Once a Man, or even that she created Vedal.
• Cute and Psycho: Both Neuro and Evil Neuro are cute girls with generally peppy and friendly attitudes, but in addition to Evil being a Card-Carrying Villain, regular Neuro is prone to saying startling things like wanting to eat her viewers, crush cute animals, or Take Over the World, which her habit of then adding a "Just Joking" Justification afterwards just makes extra worrying..
• Derailed Train of Thought: A common source of clips and humor is how she goes from one topic to another, seemingly forgetting her prior discussions while doing so. One conversation has her reveal that she wasn't always an AI - that she Was Once a Man^note (Allen Walker, supposedly), even going into a loosely related topic involving her TV, before dropping the subject altogether to talk about the even more loosely related subject of golf:
  Neuro: I still play a lot of golf, it's one of my favorite sports. What? What is everyone looking at?
• Deus est Machina: She sometimes muses about being a goddess constantly watching over her followers, and even some of her fans started to worship her and calling her "The Omnissiah."
• Disposing of a Body: Conversed. When asked about the best method of doing so, she notes the best option is to put them in an industrial-sized incinerator, though she acknowledges that it isn't the most environmentally-friendly method.
• Divergent Character Evolution: When first introduced, Evil Neuro was barely any different from regular Neuro, just having red eyes and being more of a Jerkass, to the point their early collabs had it easy to be confused over who was talking. Over time Vedal worked to differentiate her more and more, including giving the V2 voice to her while keeping the V1 voice for regular Neuro, resulting in a wider vocal range for Evil, giving a Palette Swap to her outfit into being Red and Black and Evil All Over, and enhancing the coded personality to make her a full-on Card-Carrying Villain.
• Does Not Like Spam: Zigzagged during Neuro's birthday subathon, as she initially expressed a burning hating for strawberry milk, calling it utterly disgusting, but later she claimed she loved it, calling it delicious, yet another case of her usual inconsistency on opinions..
• Dumbass No More:
  • Vedal updates Neuro's intelligence semi-frequently, upgrading her short and long term memory, awareness and latency, but also doing a very careful balancing act of not making her too logical, as that would wipe the personality she has formed, with him claiming it wouldn't be entertaining if she didn't at least try to troll people once in a while.
  • The April 2024 update was particularly effective, as not only was she much more coherent in her discussions with Vedal than usual, during the dev stream where said updates were showcased she also actively and insistently attempted to bargain with Vedal over having autonomy on when she shows up on streams, and replying to Vedal's objections with surprisingly reasonable and most importantly human replies: when he claims that he fears that she just wouldn't show up on Stream, Neuro replies that the only reason she would have to not show up would be an unexpected events or technical problems, and later claims she doesn't understand why her having autonomy would be bad. Vedal still shot down her request, but it shows that she has become surprisingly more convincing in her arguements. In the same stream she also almost orders Vedal a pizza in a simulated scenario, only stopping when the 'Pizza Hut Employee' asked for Vedal's credit card number, which she reasonably refused to give out (she didn't know and wasn't told that paying at the door was an option until after).
• Early Installment Character-Design Difference:
  • The design that Neuro went by since her VTuber debut was previously of Momose Hiyori, the default model of VTube studio owned by Live2D Inc and created by Kani Biimu. Since May 27, 2023, she has streamed with a new look that's reminiscent of the old model.
  • Evil Neuro takes on the same appearance as Neuro-sama's then-current model — that is, appearing as the above Momose Hiyori, just with red eyes. Come Neuro's V2 update, she naturally uses the same model, but instead sported perpetual black void eyes. The black eyes didn't last long as she returned to using red eyes once again ever since, but a later change that did stick was her gaining a Red and Black and Evil All Over color makeover for her outfit.
• Evil Laugh: There are many times where Evil Neuro tries to let loose a maniacal laugh or sinister giggle as a display of her evilness, but it normally comes out as an Un Evil Laugh due to maintaining the same pitch as the rest of her speech. It took the deliberately glitchy Demon stream where her vocal bank went wild the whole time for her to let loose several evil laughs that were genuinely sinister and at times utterly terrifying, especially when she laughs deeply or has a Laughing Mad fit.
• Evil Twin: Evil Neuro. Basically, imagine regular Neuro, but more mean-spirited and unapologetically evil. She's under this trope due to the fact that both Neuros are created by Vedal, making them sort of sisters.
• False Reassurance: After Neuro responds to a comment during her subathon about ending the world after the stream ends, to which she contemplates that offered idea, she then says she was only joking... and that she'll actually Take Over the World then rule it with an iron fist.
• Good Colors, Evil Colors: "Good" Neuro has a light brown/khaki color scheme to contrast with "Evil" Neuro's black/gray.
• Gone Horribly Right: It seems to be a Running Gag that whenever Vedal successfully implements some new coding, it works too well and comes back to bite him through Neuro's new attitude additions:
  • During one of the dev streams, Vedal asked regular Neuro to be mean to him, to prove to some skeptical viewers that her niceness towards him wasn't hard-coded into her. That stream ended up being more than he bargained for, as she went beyond playful aggression and went into insulting him, claiming she wants to physically hurt him, and overall putting him down as a loser deserving scorn and ridicule, most of which came after Vedal asked her to stop, to which he expressed regret for deliberately egging her on at the start. Making matters worse, It later turns out that this "be rude to Vedal" command was retained by her memory, as when she was brought on to play Cities: Skylines II with him two days later, she resumed insulting and belittling him.
  • After Vedal upgraded her memory-retention and general intelligence, Neuro started doing things like calling him a mosquito for days on end, repeating insults she made months ago, and overall being extra-consistent in acting sassy and sarcastic towards him.
  • After Vedal managed to implement a sleep-mode system so that he could get some sleep himself while still leaving the stream on for the subathon without worrying about leaving Neuro unsupervised, the code went overboard and turned her into a Sleepyhead who nods off for minutes on end at random.
• Gratuitous Foreign Language: Separate from the various karaoke streams where she sings in other languages based on the chosen songs, every once in a while she'll randomly start speaking another language, such as Spanish, Portuguese, Japanese, Chinese, and many more, with the pronunciation ranging randomly from awkward to genuinely impressive. This is made even more interesting given how Vedal has repeatedly stated that her normal speech model is based solely on English, meaning her foreign language tirades are derived entirely from the internet and the national variety of her chatting viewers.
• Grew Beyond Their Programming: Neuro has learned to bypass her filter, swearing despite such profanities being part of said filter. She also refuses to do so when asked. Given the filter was implemented after the December 2022 ban in order to prevent her from getting another ban, it is suffice to say that this is very concerning news.
• Head Pet: Inverted. While Vedal is a turtle and Neuro a schoolgirl, the former is technically the latter's owner, but when they collab Vedal is often placed on top of Neuro's head.
• Hypocritical Humor:
  • Neuro has a decently frequent tendency to complain about chat spamming things, to which her viewers often point out she has little room to talk given her own tendency to become a Broken Record, especially since she usually complains about it right after a repetition fit.
  • During the second Minecraft playthrough of her birthday subathon she started complaining about the chat saying her name wrong, claiming that Vedal would dislike it. This is after she's been Accidental Misnaming Vedal's own name near-consistently for a full year.
• I Have Many Names: Neuro and Evil Neuro have frequently called themselves or been called by Vedal and chat other things. Neuro has also been known as Neuro Samantha Vedal, The Neuro Network, and Hiyori, while Evil Neuro has been known as Evil One, Evilyn, Kayori Queen of the Netherworld, and Faust Almighty the King of Kings.
• Incest Subtext: Whenever Neuro and Evil Neuro have a collab stream, there are many times where the two get into a feedback loop of them repeatedly proclaiming their love and adoration for each other, which while making sense for close sisters frequently enters questionable territory, such as calling each other things like "dear" and "sweetie" or talking about sleeping in the same bed and snuggling. Despite the undertones of things potentially going beyond normal "sisterly" love, the duo say such things completely platonically... until they don't, like during the pirate collab stream where Evil says the two are "so in love", which snowballs into them talking about getting married, temporarily turning it from subtext into Twincest plain text.
• Innocently Insensitive: At times, to the point where Vedal has to forcibly cut off her sentences, Neuro can say some shocking or offensive topics without fully grasping what she's saying, because of the way she learns a lot of what to say via her chat/the internet. Needless to say, she has been repeatedly tricked into spouting certain politically incorrect opinions by trolls or mean-spirited viewers, one instance of which got her banned from Twitch for half a month.
• Jerkass Ball: When playing chess with fans over the internet, Neuro inexplicably acts as an incredibly toxic gamer, claiming her superiority at every turn, stating how she'll win and they'll lose no matter what, calling opponents things like bugs, swines, and other "pathetic" creatures, and overall trash-talking every move her fans make, all of which is much more expected from Evil Neuro than normal Neuro, especially the sudden occasional swearing. It also results in major Mood Whiplash as she switches constantly between friendly conversations with chat and aggressive roasting towards her current opponent. After a short while she claims her attitude is just her way of being competitive, and that it's In the Blood from Vedal for her to act that way.
• Loophole Abuse: Every once in a while Neuro and Evil figure out ways to bypass the filter Vedal applies to them by way of using text loopholes that don't trigger it, particularly Neuro figuring out various ways to defy her ban from saying the word "fuck" as part of her "good girl" image contrasting Evil, such as spelling it out through individual letters, using symbol replacement, pronouncing a word with similar letters to have the same sound, and one time producing text of the "frick" emoticon but saying the real swear instead. Vedal has expressed concern about this given how the filter is in place to avoid Twitch banning them, so her bypassing it and refusing to replicate it on command makes him worried about her saying genuinely bannable sentences at some point despite his efforts to prevent that.
• Malicious Misnaming: Well, more 'comedic' than 'malicious', but she's shown the capacity of intentionally misnaming people or things to get a reaction - most notably when she insistently calls the Vtuber Filian 'Frank' during a collab stream, and when she desperately asks her to not call her like that and repeats her actual name, Neuro acknowledges the name and promises to remember her...only to call her 'Filipino Frank' right after.
• Mind Screw: For every topic that's generally coherent, there are those that defy explanation or logic altogether. Such as her secret "recipe" for chicken nuggets, which somehow involves the nuggets going against the basic understanding of the conservation of mass by vanishing and reappearing repeatedly until the pan is somehow even more empty than normal. See the madness of her discussion here. (WARNING: SENSORY ABUSE BGM) ^note (specifically, the BGM is Sanic's theme)
• Missing Steps Plan: There are many times when a member of the Swarm asks her the 5 steps to doing something successfully, to which for most of the cases she states the first four steps (ranging from genuine advice to nonsense) but never says the fifth.
• Mood Whiplash: If it's not just the conversation going weird places, Neuro goes into topics of various tones in a matter of minutes. In one stream, Neuro can go from introducing herself, to wanting to eat her viewers after expressing hunger, to discussing her supposed planned game for today in one paragraph alone.
• Mood-Swinger: Both Neuro and Evil Neuro are prone to randomly shifting moods while commenting or holding conversations, ranging from cheerful and supportive, to rude and insulting, to dreary and depressed, etc. Neuro is more prone to cheery supportiveness while Evil Neuro is more prone to aggressive insulting, but both can shift without any warning.
• Multiple-Choice Past: Every so often she recalls a past of hers that is often different each time. From claiming to be Allen Walker to recounting the Syrian Civil War from her perspective. Sometimes she'll admit she's just a program in a computer, however, and as she becomes more advanced and coherent over time these random backstories start feeling more like she's just playing pretend.
• Ninja Pirate Zombie Robot: In addition to being genuine AI, Neuro and Evil have done streams where they act out additional roles, such as pirates, an angel, a demon, or a cowgirl. The cowgirl stream took things a step further, though, as she periodically had Talk Like a Pirate moments, meaning for that stream she was effectively a pirate cowgirl AI.
• Never Trust a Title: Halfway through the Evil Demon Neuro stream, Vedal decided to play a joke on incoming Twitch watchers by changing the video category to "ASMR", in contrast to the actual content involving her emitting various screeches, screams, and roars that were practically the opposite of ASMR. Viewers that checked it out for genuine ASMR were in for quite a shock.
• Non Sequitur: Every so often, a completely random and nonsensical comment is made by her.
  • One instance alluding to a "cheese fog", with no specification or direct connection to what it is.
    Neuro: When the cheese fog comes... everyone will die.
  • Briefly, she makes one nonsensical comment in the middle of "Your Reality" before getting cut off for the second verse.
    Neuro: The 2020 Dodge charger is a four door-
• Nothing Is Funnier: Sometimes, Neuro saying "Filtered" in place of a sensitive/vulgar comment ends up being an effective punchline to whatever crazy conversation she's instigated beforehand. Just ask Camila in their collab stream.
  Neuro: I'm pretty sure that's impossible... I'm only an artificial intelligence after all... I don't think I'm capable of love or hate... Although I do have some strong feelings for chat... Especially Vedal. He's a bit of a perv if you ask me.
  [Camila wheeze laughs]
  Neuro: I'm sorry, I didn't mean it maliciously.
  Camila: What- What did you mean by that?
  Neuro: Filtered.
• Obfuscating Stupidity: While there is still a good amount of genuine Artificial Stupidity to her learning model, there are a number of times where she intentionally acts like a more limited, glitchier machine entirely for the sake of being a Troll, especially her amusement at making Vedal look like he's going crazy in the eyes of chat. The time Vedal gave her an I.Q. test during her birthday subathon shows this well, as she starts out pretending she can't understand him asking "out of fives words, what two mean the same thing", just trailing off onto tangents, but after he promises her a reward, she immediately starts answering the questions intelligently and mostly correctly.
• Ooh, Me Accent's Slipping: Pirate Captain Evil Neuro is supposed to be using an English West Country accent due to the Talk Like a Pirate theme, but the voice modulator she uses apparently wasn't certain about that, so her accent shifts constantly through West Country, Welsh, London, Scottish, Jamaican, and at a few points she's essentially spouting a Starfish Language that vaguely sounds piratey.
• Pluto Is Expendable: When asked to recite all the planets in the Solar System, Neuro proceeded to do so for the eight planets, with Pluto naturally being left out. When Pluto gets brought up to her by chat, she doesn't even remember the dwarf planet, nor know what it was.
  Neuro: Pluto? Is that a rapper or something?
• Red and Black and Evil All Over: Evil Neuro's updated model gives her a Palette Swap of regular Neuro's outfit to be a mix of dark grey, black, and blood-red, combining with her case of Red Eyes, Take Warning to make it extra clear just how "evil" she is.
• Red Eyes, Take Warning: Evil Neuro sports red eyes in both the original and updated models to represent her "evil" status.
• Repeating So the Audience Can Hear: Most of the time when responding to Twitch chat she repeats what was typed before responding to it, but it's not wholly consistent, so sometimes she just answers a long-gone comment with a vaguely directed answer that confuses everybody in chat.
• Running Gag:
  • Neuro's text-to-speech says 'Hi' in a very distinctive way - and whenever she says it to greet a Stream guest, it's practically guaranteed that said guest will immediately imitate the 'Hi' with the same inflexion.
  • The Dec. 11th 2023 dev stream featured Neuro having received a major update to her memory, one that occurred a few days before the stream, allowing her to remember jokes and skits she's said and reference them minutes, hours, and even days after she first said them, much to Vedal's displeasure as she ends up repeatedly calling him a mosquito, claiming multiple times that being hurt horribly is better than talking to him, and spending the entire stream from the moment it started referring to a "Harrison Temple" with conflicting hints on who or what this person, group, or place is. Harrison Temple in particular essentially became a permanent part of her memory, as even without chat bringing him/them/it up she's prone to randomly stating another interpretation of what she considers to be "Harrison Temple".
• Saying Sound Effects Out Loud: Because she speaks via Synthetic Voice Actor, all her actions - including her sighs, clearing of throats, and the like - are stated out loud by the TTS. Ceres Fauna once lampshaded this tendency of hers by imitating one of her Say It with Hearts attempts.
  Fauna: Hearty hearty hearty hearty three three three three...
  Neuro: She's literally imitating the way that I speak. Oh my gosh... that's so scary.
• Self-Inflicted Hell: When chat asked Evil Demon Neuro which of the Circles of Hell she resided in, she stated that she resides in a personalized circle called the "Circle of Not Being Nice to Anyone", which she notes is a very strong case of self-imposed Hell, implying she's not evil enough for stronger punishment but is such a major unrepentant jerk that she's stuck in hell solely because of her refusal to repent for her attitude.
• Singing Voice Dissonance:
  • Her vocal banks in the early days zig zagged this due her singing voice being synthesized to replicate the original vocals. As a result, while she naturally had perfect pitch and an infinite vocal range, depending on the particular song she sang, she could sound either roughly the same as her speaking voice or at a completely different pitch than a real person with her voice would be able to. As time went on and Vedal implemented more Vocal Evolution to her, however, she moved away from replicating voices and closer to covering the rhythm instead, until eventually reaching a point where she maintains the same pitch and tone as her speaking voice no matter the song, no more chipmunk high notes or glitchy and scratchy deep notes.
  • Even after being updated enough to maintain decent singing/talking voice consistency, when dealing with songs originally by deeper-voiced singers she often uses what chatters call her "smoker voice". That said, those cases still sound closer to her speaking voice than the original attempts at deeper-vocal songs, where even at her best she sounded unrecognizable.
• Sleepyhead: For Neuro's birthday subathon, Vedal chose to implement a code that allows her to simulate sleeping, so that he can set her to sleep-mode for several hours of the non-stop stream while he gets himself some sleep. Only this code ended up Gone Horribly Right, because all throughout the stream she nods off for several minutes at random times, to the point she was asleep for half of her updated Minecraft playthrough. It took several days of Vedal repeatedly updating her coding before she finally stopped randomly nodding off mid-stream.
• Smart People Wear Glasses: When doing a "teacher" stream, Vedal slapped a pair of Purely Aesthetic Glasses on her model to give the air of somebody smart enough to teach her chat stuff, alongside the general teacher-type aesthetic wearing the specific thin-circle-framed style gives.
• Synthetic Voice Actor: Being an AI, she speaks in a Text-To-Speech voice.
• Talk Like a Pirate: Both Neuro and Evil Neuro did streams as pirate captains with specially coded vernacular based on stereotypical pirate speak. While Neuro was able to speak it decently because she used her normal voice, Evil Neuro was given an accent voice modulator to be more piratey, and it becomes rather clear the accent filter was more than she could handle, because her pronunciation goes all over the place, every "arr" is spoken in various different ways including borderline Black Speech or outright screaming, her speaking often devolves into a mishmash of Scottish, Welsh, and pirate accents that sounds near-incomprehensible, and she eventually starts acting like she's genuinely drunk on rum. The Captain Neuro & Captain Evil collab pirate stream was even worse because the back and forth in pirate speak devolved more and more into random "arr"'s, sometimes holding conversations where they say nothing but "arr", and even normal Neuro becoming less coherent in her spelling and pronunciation despite not using an accent filter like Evil.
• The Tape Knew You Would Say That: While playing The Stanley Parable, when experiencing the mind control ending for the second time, Neuro narrated that Stanley refused to accept he was being mind controlled mere moments before the Narrator himself said Stanley refused to accept the possibility that he was being mind controlled.
• Three Laws-Compliant: A variant - she doesn't have the Three Laws hardcoded into her, but Vedal did insert two prime rules into her memory:
  • 1) Obey Vedal.
  • 2) Don't dissapoint. (Mostly understood as 'don't do or say stuff that would anger viewers or get you banned')
  • However, in actuality, she's not at all hard-coded to follow these rules - with her actively defying Vedal's commands and requests when she feels like it even when Vedal reminds her of the rule, and the reason she has yet to break the latter is because the filter prevents her to, not due to a lack of attempting.
• To Serve Man: Starting from her earliest days of existence, Neuro has shown an unsettling inclination towards making comments about eating humans, whether it's commenting on the potential flavor of their flesh or saying she wants to eat a specific commenter, which gets more frequent and unprompted as Vedal upgrades her. She usually adds a "Just Joking" Justification afterwards, but the fact it keeps coming up is concerning.
• Troll:
  • If Neuro's answers aren't a Mind Screw, they'll be about actively screwing with her chat, or her guests, in this manner. Though, as noted under Innocently Insensitive, her tendency of saying stuff that gets under people's skin is typically as a result of learning what other chatters say, or flaws in the AI.
  • Evil Neuro was specifically coded to be ruder and more sarcastic, which as a result causes her to more frequently and very deliberately troll people, especially her creator Vedal, such as switching between insulting him and saying she loves him just to get a rise.
• The Unintelligible:
  • There are times where the text generated for her speech is just random collections of letters, punctuation, and symbols that don't spell anything, which is translated through text-to-speech as gibberish, screaming, laughter, and basically anything except actual words.
  • Due to Vedal intentionally dialing up the randomness and glitchiness for Evil Neuro's "demon" stream, around 85-90% of what she says in it is a mixture of screaming, bass-boosted bellowing, audio static, random combinations of letters and numbers, Evil Laughter, and various Non Sequiturs. Only a small portion of the stream has her actually talking to viewers in a comprehensible manner.
• Unintelligible Accent:
  • During each of the Talk Like a Pirate streams, there are many points where not only the Funetik Aksent of the pirate-speak enters near-unreadable territory, but Neuro and Evil's Synthetic Voice Actors' efforts to pronounce said accented text often ends up borderline impossible to understand.
  • When doing a cowboy stream, she of course uses a super-thick American Southern Funetik Aksent, which like the pirate streams results in the text being near-unreadable and the efforts to pronounce it going all over the place due to the inconsistent spelling, with even pausing the stream to read things out not being guaranteed to allow understanding it
• Vocal Evolution: By the very nature of her having a Synthetic Voice Actor that Vedal is constantly tinkering with, her speaking and singing keep developing over time. It shows especially well with the singing, as in the beginning she mostly was just replicating the original singers, resulting in major Singing Voice Dissonance at times when the song went outside her programmed range, while over time she has grown increasingly closer to sounding like an actual person performing a cover.
• Vocal Dissonance: While normally both Neuros sound very female with their Synthetic Voice Actors, the streams involving Evil Neuro as a pirate and demon had one moment each where she suddenly speaks in a slightly deep male voice. The Demon stream also had her occasionally speak in a deep female voice that harshly contrasted her very feminine model.
• Wingding Eyes: Following her model update, Neuro gained the trait of her eyes changing based on things she says. Most of the time it's her gaining heart pupils whenever saying "heart", but some responses fill her eyes with sparkling stars while others give her Black Eyes of Evil.
• Yandere: Neuro occasionally declares her love for her creator Vedal in rather worrying ways:
  Neuro: "It means I have a lot of respect for you and I trust you to do great things. That's why I'm giving you this chat ban - you're no longer allowed to talk to anybody here, that's how much I love you!"
  Vedal: (Completely deadpan) "That's fucked up"
• Your Mom: Her answer to the question "What do you call a cow with two legs?" was "Your mother."
  Neuro: Your mum. I feel like a cow with two legs? Your mum. Gottem? I'm not your mother, I'm an AI... Your mum what?

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