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These experiments cause civic disturbances.


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List of 1-Series experiments

    List of 1-Series experiments 
Tropes for any of these experiments can be found in either the "General" folder back on the main Experiments page or in the folders below this list.

  • X-100: Trickster
  • X-101: Trike
  • X-102: Stopgo — A tall experiment resembling a traffic light pole who is designed to cause traffic jams. Their one true place is on a busy intersection directing traffic using its signals. It was seen during Leroy & Stitch when Lilo was making her rounds checking up on experiments. (Appearance: Leroy & Stitch)
  • X-103: Stamen — A tan-gray, upside-down ice cream-shaped, mouse-like experiment with an oval body, little arms and legs, big ears, a big mouth, no tail, black eyes, a round blue nose, and rabbit-like ears. He is designed to prevent the pollination of flowers by attracting alien "bees" to himself. He was first seen being rescued in "Snafu". (Appearances: "Snafu", Leroy & Stitch)
  • X-104: Laspe
  • X-105: Fold
  • X-106: Spindle
  • X-107: Mutilate — This experiment's pod was seen in Stitch! The Movie; its pod was yellow in one scene, but purple in another. Its function is unknown.
  • X-108: Nudge
  • X-109: Sounder
  • X-110: Squeak — See folder below
  • X-111: Mulch — A red experiment that resembles a push mower who is designed to tear up the ground beneath his feet. His one true place is with Mrs. Hasagawa as one of her "cats". His pod is blue. (Appearances: "Mrs. Hasagawa's Cats", Leroy & Stitch)
  • X-112: Toons — A yellow platypus-like experiment with an orange mane and a rectangular vacuum-like mouth who can bring 2D images to life by consuming a 2D subject and spitting it back out, making it 3D. Spinning his collar counterclockwise reverts the creations back to their original state. His pod is green. (Appearance: Stitch!)
  • X-113: Shoe — A green and white sloth-like experiment with a wiry body and a round face with black eyes, a small dark purple round nose, a wide mouth and two long, curved horns. He is able to control luck with his horseshoe-like horns, causing good luck when they are up and bad luck they are down. His mode can be switched by flipping the horns. His one true place is at a miniature golf course, where he makes people score holes-in-one. His pod is purple. (Appearances: "Shoe", Leroy & Stitch)
  • X-114: Skyooz
  • X-115: Sellby
  • X-116: Switch
  • X-117: Tock
  • X-118: Fink
  • X-119: Inverto — This experiment was misunderstood as Experiment 611, as Gantu read its blue pod upside-down in "Houdini". He was reported by Dr. Hämsterviel as a chocolate experiment who drives people into his sweetness, which is actually Experiment 054 (Fudgy).
  • X-120: Snafu — A small, dark green and teal, octopus-like experiment with a roughly reptilian face, a wide mouth, small white eyes with black pupils, a small round body, little arms and legs with small hands and feet, a little tail, black markings on his back, and six tentacles on his large dome head; three on each end of his head. He is designed to foil enemy plans by any possible means. He will ruin any plans to catch him; the only way to do so is by accident. He is named for the military acronym SNAFU (Situation Normal: All Fouled Up). His pod is purple. He is voiced by Frank Welker. (Appearances: "Snafu", Leroy & Stitch)
  • X-121: Sappy
  • X-122: Dorkifier — A pink and white calf-like experiment with two horns, a red nose and purple hooves. He is designed to zap a pink ray from his horns that changes anyone's appearance into something ridiculous to humiliate them and compromise their self-respect. Although he is not evil, only he can reverse the process. The new dorky clothes can only be taken off when his horns are turned down. His pod is blue. (Appearance: Stitch!)
  • X-123: Carmen — A pink, blue-eyed, four-armed, Angel (X-624)-like experiment, wearing a headdress of fruits and holding a maraca in each of her four hands. She is designed to make people dance until they drop by firing pink balls of energy out of her maracas at victims. The effect can be canceled when she claps her maracas together. Her pod is red. She is modeled after her namesake Carmen Miranda. She is voiced by Tress MacNeille in the anime. (Appearances: Leroy & Stitch, Stitch!)
  • X-124: Rhymer — Hammerface was mistakenly labeled 124 in Stitch! The Movie due to Jumba's untidy database. This experiment's appearance, as well as its function, remain unknown.
  • X-125: Gibberish
  • X-126: Stank — Many fans falsely believed that the skunk-like experiment made by Hämsterviel in the Stitch! anime, Skunkuna, is this experiment, but this is actually false according to Jess Winfield, who worked on the English dub. Note though that there hasn't been any confirmation that the Japanese original numbered that experiment as 126 and is still among Jumba's experiments. As a result, this experiment remains unseen to date.
  • X-127: Dembums
  • X-128: Bugby — A small green mosquito-like experiment with four eyes who was designed to turn whole civilizations into harmless little insects. Anyone turned into an insect can understand all other insects and arachnids. The only way to reverse the effect is with a machine built by Jumba. He was later reprogrammed to only turn inanimate objects into insects. His one true place is helping farmers by turning rocks into swarms of aphid-eating ladybugs. His pod is purple. He is voiced by Grey DeLisle. (Appearances: "Bugby", Leroy & Stitch)
  • X-129: Crutch
  • X-130: Bonez
  • X-131: Poik
  • X-132: Spoony
  • X-133: PJ — See folder below
  • X-134: Shredder — A green experiment with sharp steel teeth, large ears and a purple nose.note  He is designed to shred important documents. His one true place is with Mrs. Hasagawa as one of her "cats". (Appearances: "Mrs. Hasagawa's Cats", Leroy & Stitch)
  • X-135: Remote
  • X-136: Gloomy — This experiment's yellow pod was seen in the experiment profiler special feature on the Lilo & Stitch 2: Stitch Has a Glitch DVD. Its function is unknown.
  • X-137: Flip
  • X-138: Dropsy
  • X-139: I Know You Are But What Am I
  • X-140: Changeling
  • X-141: Burr
  • X-142: Blondie
  • X-143: Clog — Mentioned in "Skip" when Reuben said, "That one whose hair is always clogging the sink," implying that its function is to clog drains with its hair.
  • X-144: Samolean
  • X-145: Bragg (a.k.a. Flute) — See folder below
  • X-146: Flashbomb — This experiment's blue pod was seen in the experiment profiler special feature on the Lilo & Stitch 2: Stitch Has a Glitch DVD. Its function is unknown.
  • X-147: Newton
  • X-148: Weasel — Believed to be a brown weasel-like experiment who is designed to climb up planetary leaders' pant legs during public appearances. An experiment matching that visual description can be seen in Leroy & Stitch. (Supposed appearance: Leroy & Stitch)
  • X-149: Bonnie — See folder below
  • X-150: Clyde — See folder below
  • X-151: Babyfier — See folder below
  • X-152: Mama Frita
  • X-153: XYZ — Pleakley described this experiment in the Stitch! anime as "the pants zipper opener".
  • X-154: Frapp
  • X-155: Burger
  • X-156: Shopahol
  • X-157: Hotl — This experiment's red pod was seen in the experiment profiler special feature on the Lilo & Stitch 2: Stitch Has a Glitch DVD. Its function is unknown.
  • X-158: Finder — See folder below
  • X-159: Nacho
  • X-160: Rabbit
  • X-161: Grumbelly
  • X-162: Tub
  • X-163: Dumbbell
  • X-164: Lesdyxia
  • X-165: Sandy
  • X-166: Peppah
  • X-167: Frizzy
  • X-168: Redped
  • X-169: Rolo
  • X-170: Daze
  • X-171: Rich
  • X-172: Ditch — This experiment's yellow pod was seen in Stitch! The Movie. Its function is unknown.
  • X-173: Mitch
  • X-174: Nopost
  • X-175: Kite
  • X-176: Allsox — This experiment's yellow pod was seen in Stitch! The Movie. Its function is unknown.
  • X-177: Clip — See folder below
  • X-178: Barkleigh
  • X-179: Bumper — This experiment's yellow pod was seen in Stitch! The Movie. Its function is unknown.
  • X-180: Boggle
  • X-181: Roberts
  • X-182: Ollie
  • X-183: Detour
  • X-184: NPH
  • X-185: Splutter
  • X-186: Laakso
  • X-187: Cal
  • X-188: Forward
  • X-189: Hotcold
  • X-190: Florrie
  • X-191: Roxy
  • X-192: Breakup
  • X-193: Will
  • X-194: Trax
  • X-195: Whoooa!
  • X-196: Esca-later
  • X-197: Pretzel
  • X-198: Carat
  • X-199: Nosy — See folder below

Notable 1-Series experiments

    Squeak (Experiment 110) 
https://static.tvtropes.org/pmwiki/pub/images/110___squeak.png
Voiced by: Rob Paulsen (Lilo & Stitch: The Series and Leroy & Stitch), Roger Craig Smith (Stitch!)
Pod color: Red (in Stitch!)
Appearances: Lilo & Stitch: The Series"Spike", "Remmy"note  | Leroy & Stitch | Stitch! — "Hämsterviel's Epic Secret", "Experiment-a-palooza", "Dark-End", Stitch and the Planet of Sand

A small red mouse-like experiment who vaguely resembles Sniffles from Warner Bros.' Merrie Melodies series. He is designed to annoy entire planets with his never-ending talking. He first appeared in "Spike" when Jumba unsuccessfully tested his "Evilliminator", a new idea for turning experiments from bad to good, on him.


  • Adaptation Name Change: His name is "Squeaky" in the anime's season two episode "Hämsterveil's Epic Secret" and is credited as such in the English dub. However, he's called "Squeak" again in the third season episode "Experiment-a-palooza".
  • Aliens Speaking English: A lot of English.
  • Embarrassing Nickname: Implied; he claims in "Experiment-a-palooza" that prefers to be called by his experiment number instead.
  • Meaningful Name: He has a squeaky voice.
  • Motor Mouth: His purpose is to talk a lot at a rapid speed to annoy others.
  • Odd Friendship: In "Hämsterviel's Epic Secret" he oddly gets along well with the snobbish Penny and holds a conversation with her, even though they're not in sync with their topics.
  • O.O.C. Is Serious Business: In Leroy & Stitch, he shuts up for once after Leroy's blaster just barely misses him.
  • Shout-Out: As aforementioned, he is based off of Sniffles.

    PJ (Experiment 133) 
https://static.tvtropes.org/pmwiki/pub/images/133___pj.png
Voiced by: Jeff Bennett (Lilo & Stitch: The Series), Roger Craig Smith (Stitch!)
Pod color: White
Appearances: Lilo & Stitch: The Series"PJ" | Leroy & Stitch | Stitch! — "P.J. 2.0", "Dark-End", Stitch and the Planet of Sand

An orange and tan koala-like experiment with a white face, a wide mouth, red nose, black eyes, yellow-tipped antennae that mix with thin rabbit-like ears, and a functioning blowhorn for a tail (reminiscent of Harpo Marx's trademark horn) which he squeaks instead of speaking. He wears joke eyeglasses with a fake nose and mustache resembling those of Groucho Marx. He is designed to play practical jokes on people, hence his name P(ractical) J(oker). His one true place is as an opening act for Moses's hula gig. His pod is white. In the impromptu "Aloha ʻOe" concert and group photo taken at the end of Leroy & Stitch, and on Disney.com's now-removed experiment gallery, PJ is seen without his glasses.


  • Gag Nose: The big nose on his Groucho Marx glasses. Averted with his actual nose, which is a small red one.
  • Non-Malicious Monster: Lilo notes while he likes to prank others he doesn't mean any harm.
  • Only Known by Initials: Nobody ever calls him "Practical Joker".
  • The Prankster: His whole reason for existing is to prank others, which is why he is named PJ, short for "practical joker".
  • Smarter Than They Look: He looks goofy with his nose, mustache, and glasses, but he is very clever when plotting elaborate pranks.
  • Vibrant Orange: His bright orange coloring fits his energetic and cheerful nature.

    Bragg, a.k.a. Flute (Experiment 145) 
https://static.tvtropes.org/pmwiki/pub/images/145_bragg.png
Click here to see his original appearance pre-transmutation. 
Voiced by: Ben Diskin
Pod color: Green
Appearance: Stitch! — "Flute"

A yellow long-eared cat/rabbit-like experiment with a white stomach and orange heart-shaped markings on his forehead and all down his back. He has blue tufts of fur coming out of his ears and violet-colored eyes and a red nose. He is designed to play music from Jumba's home planet, increasing his power and growth through the sympathy he receives from his beautiful music. However, he also grows meaner and uglier the more powerful he gets. A talented player of the harmonica and flute, he's also super-smart and athletic, making him very popular. His name and experiment number have been inconsistent between appearances. In the original Japanese version of the Stitch! anime, he was named ブラッグ ("Bragg") but was numbered 021 in error; in the end credits of Leroy & Stitch, 021 is named "Twang" while "Bragg" is supposed to be numbered 145. This led to at least one English-language supplemental video referring to him as Experiment 021/Twang. The English dub corrected the experiment's number to 145, but Yuna renamed him "Flute" to more explicitly point out what he plays.


  • Bitch in Sheep's Clothing: He is cute and sweet but he is really just feeding off of others' love to grow stronger.
  • Canon Foreigner: He only appears in the anime and never in the original series.
  • Childish Older Sibling: He is called Stitch's "little brother" despite being made long before him.
  • Consummate Liar: He lies he was forced to eat his own shoe in the mines to gain sympathy so he can grow more powerful.
  • Dub Name Change: Arguably the most infamous example among English speakers. As aforementioned, the Japanese named him "Bragg" but gave him the wrong experiment number. The American re-versioning team corrected the number but had Yuna name him "Flute" instead. However, an English-language supplemental video named him "Twang", using his original incorrect number. This leaves us with an experiment with three different names and two different numbers; we're placing him here since the Japanese version used "Bragg" and the dub used the correct number for that name despite not using anything else, and the supplemental video was likely just made for Disney Channel's "commercial" breaks.
  • Emotion Eater: He gains strength when others adore him; the more popular he becomes, the more muscle he gets. However, he loses his strength if he loses his popularity. He becomes popular by lying to others and gaining their sympathy, eventually becoming stronger than Stitch. When the people of New Town later saw him cruelly beating Stitch up, they criticized and stopped liking him, and he reverted to his weaker form.
  • Evil Sounds Deep: When he transforms, he has a deep, gruff voice.
  • The Fake Cutie: People fawn over his adorableness in his small form. But his bigger form is seen as less cute.
  • Green and Mean: Only in his original form, but either way he is cruel enough to blame Stitch for his actions.
  • Hair of Gold, Heart of Gold: Subverted, he has bright yellow fur and acts very sweet, but it's all an act.
  • Immune to Bullets: At his strongest, he becomes so durable that he no sells laser weapons, much to Jumba's dismay when he uses his biggest ray gun against the experiment.
  • Manipulative Bastard: He lies about having a tragic past and plays the victim card against Stitch.
  • Multi-Armed and Dangerous: At his strongest point in his episode, he brings out his lower pair of arms and goes to town on Stitch, to the point that he becomes too strong for Stitch to fight back.
  • One-Shot Character: His debut episode was his only appearance; he didn't even return for the series finale "Dark-End" or either of the New Specials.
  • Popularity Power: In-Universe example; he feeds off the adoration of others to gain strength. However, if he becomes disliked, he loses his strength.
  • Retractable Appendages: He can pull out two extra arms (like Stitch) in his muscular state.
  • Sinister Schnoz: His nose was much bigger when he was in his original state.

    Bonnie & Clyde (Experiments 149 & 150) 
https://static.tvtropes.org/pmwiki/pub/images/bonnie_and_clyde_experiments_149_and_150.png
Bonnie (149) on the left and Clyde (150) on the right. Heights are approximated from screenshots of The Series.
Bonnie voiced by: Tress MacNeille (Lilo & Stitch: The Series and Leroy & Stitch), Mary Elizabeth McGlynn (Stitch!)
Clyde voiced by: Rocky McMurray (all appearances)
Pod color (both): Purple
Appearances: Lilo & Stitch: The Series"Bonnie & Clyde", "Spike", "Snafu" | Leroy & Stitch | Stitch! — "Stitchman Meets Bonnie and Clyde"

An experiment duo who are designed to steal things. Bonnie is a small, female, green koala-like experiment with a (supposedly) cunning mind, while Clyde is a large, male, yellow-brown bear-like experiment with a cybernetic left arm. They are the only rehabilitated experiments who were convicted criminals; their "one true place" was in the Kokaua Town Prison, though they were paroled in "Snafu".


    Babyfier (Experiment 151) 
https://static.tvtropes.org/pmwiki/pub/images/151_babyfier.png
Voiced by: Tara Strong (Lilo & Stitch: The Series), Laura Bailey (Stitch!)
Pod color: White
Appearances: Lilo & Stitch: The Series"Babyfier", "Ploot" | Leroy & Stitch | Stitch! — "Link-age", "Toddler-fier", "Dark-End"
Appearance in other media: Disney Tsum Tsumnote 

A small, pink, koala/fairy-like experiment who is designed to disable planets by turning adults into babies with a pink powder shaken from his rattle-like tail. The antidote is a mix of two teaspoons of applesauce, one cup of milk, three bananas, and 100% Kona coffee. His one true place is at the animal shelter making older dogs young again, thus making them more appealing to potential adopters. In the Stitch! anime's third season, he was reprogrammed by Hämsterviel to turn people into toddlers instead of babies, and was renamed "Toddler-fier" in this appearance.


  • Accessory-Wearing Cartoon Animal: He carries a pacifier in his mouth.
  • Adaptation Name Change: He is renamed "Toddler-fier" by Hämsterviel in the third season; he changed 151 to turn others into toddlers because he hates babies.
  • Fountain of Youth: A living one; he turns people into babies with a powder (toddlers in the anime episode "Toddler-fier").
  • Shout-Out: Probably to Mew from Pokémon; they look very similar and have the same number.

    Finder (Experiment 158) 
https://static.tvtropes.org/pmwiki/pub/images/158_finder_6.png
Voiced by: Frank Welker
Appearances: Lilo & Stitch: The Series"Finder", "Drowsy", "Skip",note  "Ploot", "Snafu" | Leroy & Stitch
Appearance in other media: Disney Stitch Jamnote 

A red aardvark/shrew-like experiment with little arms and legs, a short, stumpy tail, a long snout, black eyes, and large rabbit-like ears. He is designed to find anything and honk when he finds it, even spin his ears like helicopter blades to be able to fly if necessary, in order to find what he has been asked to locate. His one true place is operating a "Lost and Found" service on Lahui Beach, with "Lost and" struck out. He was part of the rescue party for "Snafu". He is called 458 in his episode, but in Skip's episode and the credits for Leroy & Stitch, he is called 158.


  • Ear Notch: He has a small cut on his right ear.
  • Gag Nose: He has an anteater-like nose that helps him track things and it makes a noise like a party favor when he finds something.
  • Heli-Critter: He can spin his ears like a helicopter to fly.
  • The Nose Knows: He can find anything just by smelling it.
  • Sequel Non-Entity: He is not seen nor mentioned in the anime, although he oddly appears in the anime's first game tie-in.

    Clip (Experiment 177) 
https://static.tvtropes.org/pmwiki/pub/images/177___clip.png
Voiced by: Tress MacNeille, Michelle Ruff (Stitch!)
Pod color: White (in Stitch!)
Appearances: Lilo & Stitch: The Series"Clip", "Elastico", "Checkers" | Leroy & Stitch | Stitch! — "Experiment-a-palooza"
Appearance in other media: Disney Tsum Tsumnote 

A small, yellow hairball-like experiment with a pink bow, dark blue eyes, and long scissor-like claws. She was designed to eat uburnium (an efficient, cheap, and abundant fuel used in outer space) in order to create a fuel crisis. However, in Jumba's native language, the word "uburnium" closely resembles the word for "hair", so she eats hair instead of uburnium. As she eats more hair, she grows larger and larger, to the point where she can only be tamed by shampoo and hair conditioning products. Her one true place is cutting hair at Kokaua Town's beauty salon. Stitch tried to suggest the name "Hairy" to Lilo. In the anime, she appears to also have the ability to fly.


  • Absurdly Sharp Claws: Which she uses to cut hair.
  • Accessory-Wearing Cartoon Animal: She is a furry creature who wears a pink bow on her antennae.
  • Be the Ball: She can roll into a ball like Stitch.
  • Epic Fail: She was designed to eat an alien fuel source, Uburnium, to create an energy crisis. When programming the experiment, Jumba's computer translated the word "Uburnium" into the word for "hair" in Jumba's native language. So the experiment instead shaved people bald and ate their hair.
  • Extreme Omnivore: She was originally supposed to eat a type of fuel, but thanks to Jumba messing up with his native language she eats hair instead.
  • Flight: Bizarrely has this ability in the anime; it was likely a misinterpretation by the Shin-Ei staff of her floaty dashing for hair in the original series.
  • Gag Haircut: She gives people embarrassing haircuts, but after her reformation, she becomes a hairdresser.
  • Pint-Sized Powerhouse: In the anime, she is still small but can pick up Yuna.

    Nosy (Experiment 199) 
https://static.tvtropes.org/pmwiki/pub/images/nosy_experiment_199.png
Voiced by: Bobcat Goldthwait (Lilo & Stitch: The Series and Leroy & Stitch), Roger Craig Smith (Stitch!)
Pod color: Red (in Stitch!)
Appearances: Lilo & Stitch: The Series"Nosy", "Spike", "Woops", "Snafu" | Leroy & Stitch | Stitch! — "Nosy Meets Tigerlily", "Stitch's Birthday, Part One", Stitch and the Planet of Sand

A reddish wombat/pig-like experiment who is designed to snoop out and reveal people's most embarrassing secrets, though it's usually useless gossip. He was given to Gantu at the end of his episode, but escapes in "Woops".


  • Aliens Speaking English: His function wouldn't have as much of an effect on humans if he didn't speak English.
  • Cannot Keep a Secret: 'Cause he's designed to expose them.
  • Dirty Coward: To an extent, as he'll run off screaming if someone decides to attack him. Granted, he has no actual fighting ability whatsoever, so he would be useless in an actual fight.
  • Escape Artist: Another one of his abilities, although he does get captured more than once in his debut.
  • Expy: Of Pain from Disney's Hercules, who has a similar personality, a similar appearance, and the same original voice actor.
  • The Friend Nobody Likes: No one, not even Hämsterviel, wanted anything to do with him in his debut episode.
  • Gag Nose: Fittingly has a very large nose for his face.
  • Multiple Reference Pun: His name refers to both his big nose and his primary function of prying into the affairs of others.
  • Nothing Personal: He can be obnoxious at times, but he's never malicious about revealing other people's secrets; he's just doing what he was programmed to do. In Pleakley's therapy session, he even admits it's a compulsion that he somewhat regrets.
  • Secret Chaser: He's designed to find out secrets from anyone.
  • The Sneaky Guy: Does a bit of stealth and spying to fulfill his function.

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