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These experiments have element-manipulating abilities.


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List of 5-Series experiments

    List of 5-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-500: Cooler
  • X-501: Yin — See folder below
  • X-502: Yang — See folder below
  • X-503: Comet — This experiment's green pod was seen in Stitch! The Movie. Its function is unknown.
  • X-504: Bling Bling
  • X-505: Ploot — A small, blue-green, gastropod-like experiment with a small pouch, black beady eyes, green crab-like claws, and two spinning sweeper brushes for feet. He makes dolphin-like sounds at normal size, and monstrous roaring sounds when he has grown to a massive size. He is designed to flood entire cities with thick black sludge made from ordinary trash and pollution that he collects. His two antennae become like giant smoke stacks, emitting clouds of pollution into the air like smog. Air freshener can dissolve his sludge and make him clean instead of pollute. His one true place is cleaning Lahui Beach. In his episode, he is referred to as 515, which is Deforestator's number and who also appears in that episode. The episode he was featured in was first aired on Earth Day. (Appearances: "Ploot", Leroy & Stitch, Stitch!)
  • X-506: Ug
  • X-507: Woody — A brown beaver-like experiment with insect-like pincers who is able to eat wood at a rapid pace. His pod is blue. His one true place is with Mrs. Hasagawa as one of her "cats". (Appearances: "Mrs. Hasagawa's Cats", Leroy & Stitch, Stitch!)
  • X-508: Phil
  • X-509: Sprout — A plant-like experiment with a green stem, leaf-like body, tentacle-like vines, and a purple head with lizard-like face, little sharp teeth, dark blue pupil-less eyes, and a single antenna. He is designed to sprout into an uncontrollable forest of destruction. Lilo entered Sprout in an orchid competition, but the experiment began to grow out of control. Lilo and Stitch ended up catching Sprout after he had grown enormous, and Stitch planted him in an old water tower that was slated for demolition. However, in the battle between the Leroy army and the experiments at the end of Leroy & Stitch, Sprout did not sprout into an uncontrollable forest of destruction as he did on his episode. His pod is blue. He is a parody of Audrey II from The Little Shop of Horrors, and is voiced by Frank Welker. In the Stitch! anime, it's revealed that he can also produce seed pods and launch them into space. One of these pods landed on Izayoi Island and was activated as Sproutling (509-A), who had his father's original programming. The original Sprout did reappear in the anime under Hämsterviel's control. (Appearances: "Sprout", Leroy & Stitch, Stitch!)
  • X-510: Drill
  • X-511: Wilt
  • X-512: Bog
  • X-513: Richter — See folder below
  • X-514: Cone
  • X-515: Deforestator — A big purple roughly wombat-like experiment about three feet tall with long blade-like claws on his front paws and blade-like neck. He is designed to cut down entire forests. He first appeared just before Jumba activated 627, when Stitch started bragging about how easily he catches experiments (catching Deforestator in two minutes). His pod is white. He is voiced by Frank Welker. (Appearances: "627", "Shoe", "Checkers", "Ploot", "Remmy", "Ace",note  Leroy & Stitch, Stitch!)
  • X-516: Auntie
  • X-517: Parch
  • X-518: Flame
  • X-519: Splat — A large green experiment with two cone-shaped antennae and a roller between his front legs who is designed to level entire cities with his deceptively small roller. His pod is green. His one true place is as a road roller. (Appearance: Leroy & Stitch)
  • X-520: Cannonball — See folder below
  • X-521: Wrapper — A yellow-orange experiment designed to wrap things up like a mummy using his roll of paper for a tail. His pod is blue. His one true place is with Mrs. Hasagawa as one of her "cats". (Appearances: "Mrs. Hasagawa's Cats", Leroy & Stitch, Stitch!)
  • X-522: Tarantula
  • X-523: Slushy — See folder below
  • X-524: Shoveler
  • X-525: Stoneface — This experiment's blue pod was seen in Stitch! The Movie. Its function is unknown.
  • X-526: Gus
  • X-527: Chip
  • X-528: SPF
  • X-529: Digger — A tan meerkat-like experiment with a long drill-shaped tail, a round body, short arms and legs with sharp claws, a round head with sharp teeth, a dark round nose, dark blue eyes and a row of spikes from his head down to his tail. He is designed to drill holes through planets. His one true place is in the mines. His pod is purple and he was activated at the end of Stitch! The Movie. (Appearances: Stitch! The Movie, "The Asteroid", "Checkers", Leroy & Stitch)
  • X-530: Crybaby
  • X-531: Hisee — A green mole/chimp-like experiment with six hairs on his head, a very small body and a stubby tail. He appeared in some Disney Adventures comics set before the original film. The events of these comics appear to have been retconned. However, he could still have the same physical appearance. His function is unknown. (Appearance: Comic Zone: Lilo & Stitch)
  • X-532: Strato
  • X-533: Blowhard — A purple anteater-like experiment with an elephant-like head with a long trunk and a bellows on the back of his head. He is designed to immobilize any object by flying it like a kite. His one true place is with Mrs. Hasagawa as one of her "cats". His pod is blue. (Appearances: "Mrs. Hasagawa's Cats", Leroy & Stitch, Stitch!, Disney Stitch Jam 2note )
  • X-534: Crabweed
  • X-535: Spectrum — This experiment's blue pod was seen in Stitch! The Movie. Its function is unknown.
  • X-536: Polar
  • X-537: Rust
  • X-538: Autumn
  • X-539: Algae — This experiment's blue pod was seen in Stitch! The Movie. Its function is unknown.
  • X-540: Phoon — A small round red elephant-like experiment with a small trunk, two tails, clawed feet, and bright green eyes with long lashes. She is designed to create massive typhoon-like winds. She mutated into a massive stronger form after being zapped by Jumba's ray, but was reverted to her original form after Stitch put her to sleep. Her one true place is creating winds for windsurfers on Lahui Beach. Her pod is blue. She is voiced by Grey DeLisle. Both her normal and mutated forms appear in Leroy & Stitch, suggesting that she learned to change between the forms. (Appearances: "Phoon", Leroy & Stitch, Stitch!)
  • X-541: Swell
  • X-542: Hallie
  • X-543: Franklin — This experiment's green pod was seen in Stitch! The Movie. Its function is unknown.
  • X-544: Thresher — A small rough purple gastropod-like experiment with a slim, upright body, a wide mouth, two eyes on two stocks, six spiky mace-like tentacles and three short legs. He is designed to thrash crops with his tentacles. Thresher was found (in pod form), activated, named, and trained by Gantu. He was sent to Dr. Hämsterviel, but was rescued by Lilo and Stitch in "Snafu". In Leroy & Stitch, he can be seen playing the marimba during the impromptu "Aloha ʻOe" concert. (Appearances: "Dupe", "Remmy", "Snafu", Leroy & Stitch, Stitch!)
  • X-545: Pompey
  • X-546: Rip
  • X-547: Cam
  • X-548: Cheesy
  • X-549: Supersweet
  • X-550: Clammy
  • X-551: Dryheat
  • X-552: Astro
  • X-553: Clipse
  • X-554: Sol
  • X-555: Liquefactor
  • X-556: Berg II
  • X-557: Cauldron
  • X-558: Sepia
  • X-559: Midasminus — 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-560: Prism
  • X-561: He
  • X-562: Hardy
  • X-563: Silbert
  • X-564: Lot's Wife
  • X-565: Phosphor
  • X-566: Derrick — A grey dinosaur-like experiment with a drill-like tail, wearing a construction helmet. He is designed to drill potholes. His one true place is with Mrs. Hasagawa as one of her "cats". (Appearances: "Mrs. Hasagawa's Cats", Leroy & Stitch)
  • X-567: Eva — This experiment's pod was seen in "627" where it was caught by Gantu. Its function is unknown.
  • X-568: Slenky
  • X-569: Glenn
  • X-570: Frosty D.
  • X-571: Dusty
  • X-572: Dropcall
  • X-573: Handoman
  • X-574: Lardo — 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-575: Magnarette
  • X-576: Darn
  • X-577: Oof
  • X-578: Carrie
  • X-579: Spinster
  • X-580: Friday
  • X-581: Roadie
  • X-582: Spout
  • X-583: Blake
  • X-584: Balar
  • X-585: Petrifier
  • X-586: Tank — A round orange armadillo/bulldog-like experiment with thick legs, sharp teeth, and a short tail. He is designed to eat metal; the more metal he consumes, the larger he grows. He is eventually caught by Gantu after Stitch was unable to defeat the experiment and sent to Hämsterviel, but rescued in "Snafu". He shrunk between his two episodes in The Series, suggesting that he returns to normal size after a while. His pod is blue. He is voiced by Frank Welker. (Appearances: "Tank", "Snafu", Leroy & Stitch, Disney Tsum Tsumnote )
  • X-587: Noviz
  • X-588: Sa
  • X-589: Stoopinslide
  • X-590: Baron Meter
  • X-591: Squidly
  • X-592: Deodorant
  • X-593: Heatwaver
  • X-594: Ruth
  • X-595: Icecrusher
  • X-596: El Carbon
  • X-597: Zirconia
  • X-598: Gluteous
  • X-599: Tattoo

Notable 5-Series experiments

    Yin & Yang (Experiments 501 & 502) 
https://static.tvtropes.org/pmwiki/pub/images/yin_and_yang_experiment_501_and_502.png
Yin (501) on the left and Yang (502) on the right.
Both voiced by: Frank Welker
Pod color (both): Blue
Yin's appearances: Lilo & Stitch: The Series"Yin-Yang", "Elastico", "Houdini", "Finder", "Dupe", "Angel", "Slugger", "Shoe", "Checkers", "Ace" | Leroy & Stitch | Stitch!Stitch and the Planet of Sand
Yin's appearance in other media: Disney Tsum Tsumnote 
Yang's appearances: Lilo & Stitch: The Series"Yin-Yang", "Elastico", "Houdini", "Finder", "Dupe", "Angel", "Slugger", "Ace" | Leroy & Stitch | Stitch! — "The Return of Amnesio",note  Stitch and the Planet of Sand
Yang's appearances in other media: Lilo & Stitch 2: Hämsterviel Havoc, Disney Tsum Tsumnote 

An experiment duo who were designed for different purposes. Yin is a female teal octopus/squid-like experiment who sprays water at high pressures. Yang is a male orange-red weasel/lizard-like experiment who shoots lava. Their "one true place" are using their abilities together to create a whole new island.


  • Fire/Water Juxtaposition: Well, more like "Lava/Water Juxtaposition" in their case. The majority of their debut episode sets them up that they must never meet or the elemental clash would cause a deadly reaction, but it turns out Opposites Attract and their powers combined can create new landforms. Given that the franchise takes place in Hawaii, this could very well be a reference to the legend of Pele and Na'maka in Pacific Mythology.
  • Lady Looks Like a Dude: Yin gets referred to as a male by Lilo throughout the experiment's debut, even though Yin is female.
  • Pink Girl, Blue Boy: Inverted; Yin is bluish while Yang is reddish. Justified considering their names.
  • Magma Man: Yang shoots lava through the four volcano-like spouts on his back.
  • Making a Splash: Yin sprays water through her eight hose-like tentacles.
  • Meaningful Name: Named after the famous concept in Taoism, in which water and femininity are represented by yin and fire and masculinity are represented by yang.
  • Meet Cute: Jumba warns that the Earth could be destroyed if Yin and Yang ever meet. They do, and this happens.
  • No Mouth: Yin is often drawn like this, but a few brief scenes in a couple episodes ("Angel" and "Slugger") show that she does indeed have one.
  • Opposites Attract: A (possibly) platonic example. They're fire and water, yet they're perfect for each other.
  • Platonic Life-Partners: After their debut, they're rarely seen apart.
  • Ship Tease: The Meet Cute mentioned above is a particularly noteworthy case.
  • Sequel Non-Entity: They were among the most recurring experiments in The Series, yet they never appear in an episode of the anime, although Yin is featured in one of the "Kung Fu Dragon Pleakley" segments and can also be seen in one of the theme song animations, an image of Yang briefly appears on Jumba's computer at one point, and both make a brief cameo in Stitch and the Planet of Sand.

    Richter (Experiment 513) 
https://static.tvtropes.org/pmwiki/pub/images/richter_experiment_513.png
Voiced by: Tress MacNeille
Pod color: Purple (in Stitch! The Movie), Blue (in The Series)
Appearances: Stitch! The Movienote  | Lilo & Stitch: The Series"Richter", "Holio", "Elastico", "The Asteroid", "Finder", "Dupe", "Angel", "Slugger", "Checkers", "Ploot", "Ace"note  | Leroy & Stitch
Appearances in other media: Lilo & Stitch 2: Hämsterviel Havoc

A purple Ankylosaurus-like experiment designed to cause earthquakes with a slap of his tail. His "one true place" is making milkshakes in the Rental Hut on Lahui Beach.


  • Be the Ball: Not only can he curl up into a ball like Stitch can, but he is powerful enough to bust through cave walls while rolling.
  • Companion Cube: He likes to hold an orange ball that Stitch accidentally broke off from the shake machine seen earlier in the episode.
  • Dishing Out Dirt: His main ability is to cause earthquakes.
  • Earthquake Machine: A living example of this trope.
  • Foreshadowing: His pod appears in Stitch! The Movie, colored purple instead of blue.
  • Meaningful Name: He is named after Charles Francis Richter, creator of the Richter magnitude scale.
  • Mundane Utility: His "one true place" involves using his shaking ability to mix a treat.
  • Prehistoric Animal Analogue: He resembles an Ankylosaurus.
  • Purple Is Powerful: A purple experiment who can create massive earthquakes.
  • Sequel Non-Entity: Despite having been the first experiment to be caught and befriended in The Series proper (and probably the most commonly-recurring outside of Reuben and Stitch himself), he's never been in the Stitch! anime.
  • Tail Slap: A variant where he attacks by slapping his tail on the ground, though he can also use his tail to attack enemies directly.
  • Wall Crawl: He may be a heavy guy, but he can climb on walls like Stitch can.

    Cannonball (Experiment 520) 
https://static.tvtropes.org/pmwiki/pub/images/cannonball_experiment_520.png
Voiced by: Tress MacNeille
Pod color: Blue
Appearances: Lilo & Stitch: The Series"Cannonball", "Elastico", "Houdini", "Swirly", "Finder", "Dupe", "Angel", "Felix", "Checkers", "Remmy"note  | Leroy & Stitch
Appearance in other media: Disney Emoji Blitznote 

A pink experiment with a large posterior who has the ability to create massive tidal waves. His "one true place" is at Lahui Beach generating choice surfing waves.


  • 11th-Hour Superpower: He was not shown to have the contorting ability mentioned below until Leroy & Stitch.
  • Be the Ball: Like Stitch, he can contort himself into a ball and roll into enemies to attack.
  • Big Fun: Though shorter than most examples, he's a rotund experiment with a big butt who is a friendly soul that likes to have fun making big waves.
  • Bizarre Alien Locomotion: Seriously, do you know of any other alien that moves around by bouncing on their butt?
  • Character Catchphrase: The Tantalog phrase he says most often is "Namitsu!", which is an anagram of "tsunami".
  • Comically Oversized Butt: He has a large, robust behind that is so heavy that he can cause tidal waves just by jumping into the sea, and the size of his rear end is commented on various times in his debut. Lilo even notes that it's bigger than Nani's Hartman Hips.
  • Giant Wall of Watery Doom: He was designed to cause these, and he makes a few in his episode, including one just for Gantu.
  • Making a Splash: His main ability. He actually has control over his waves, so much that he was able to make a massive wave that sent Gantu (and only Gantu) all the way to San Francisco.note 
  • Non-Malicious Monster: Cannonball actually isn't really evil personality-wise; he just enjoys jumping into bodies of water to make big waves. In fact, he was rather shy and timid around others, and was scared after Stitch captured him from Gantu. After Stitch freed Cannonball shortly after Gantu ran off, Lilo and Stitch befriend the experiment and he becomes loyal to the ʻohana.
  • Ocean Awe: He is naturally attracted to large bodies of water, and will try to dive into them. This played a role along with the above two tropes as to why Lilo and Stitch had to stop him before he reached the Pacific in his episode.
  • Sequel Non-Entity: He does not show up in the anime despite his several appearances in The Series, although he does appear in a theme song animation.
  • Your Size May Vary: In his debut episode, Cannonball was smaller than Stitch. In his later appearances, he's bigger than Lilo. This cannot be attributed to growing up as it's been established that experiments do not age or grow bigger (certain experiments' abilities notwithstanding).

    Slushy (Experiment 523) 
https://static.tvtropes.org/pmwiki/pub/images/slushy_experiment_523.png
Voiced by: Frank Welker
Pod color: Blue
Appearances: Lilo & Stitch: The Series"Elastico", "Slushy", "Angel", "Spike", "Checkers", "Remmy",note  "Ace",note  "Snafu" | Leroy & Stitch | Stitch! — "Meega Going to Disneyland!", "Stitch Ahoy!", Stitch and the Planet of Sand, Stitch! Perfect Memory
Appearances in other media: Lilo & Stitch 2: Hämsterviel Havoc, Disney Stitch Jam,note  Disney Stitch Jam 2,note  Disney Tsum Tsumnote 

An icy blue-colored roughly koala-like experiment who has the ability to generate snow and ice. His "one true place" is making Hawaiian shave ice (a frozen dessert similar to a snow cone), with Dupe (Experiment 344) later joining him in making half-calorie shave ice.


  • Adaptational Villainy: He's on Hämsterviel's side in the anime, except for the last special where he's now good again.
  • Elemental Eye Colors: An ice-generating experiment with blue eyes (and body).
  • Elemental Rivalry: Had one with Splodyhead (619), Slushy's opposite in elemental power, where they had an epic fight against one another in Slushy's own episode. They also started the fight during Pleakley's E.A.R.W.A.X. session in "Spike" when Slushy threw a snowball at Splody, who returned fire only for Slushy to bat it away and break out Spike in the process. They eventually resolved their issues with one another after seeing Pleakley successfully use hugging therapy on Spike, leading the elemental opposites to hug each other.
  • Healing Factor: He can regenerate himself after being broken into several ice blocks.
  • An Ice Person: His abilities are strong enough to create powerful blizzards, and he can also make weapons out of ice.
  • Mundane Utility: His "one true place" involves using his powers to make a dessert. He also sometimes uses his powers to make snowballs to throw at others.
  • Series Continuity Error: Even though he had an episode of his own, he appeared a month earlier in "Elastico" where he was shown already rehabilitated.

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