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Mrs. Sickly, also known as Experiment 255, is an illegal genetic experiment created by Jumba Jookiba and a character in the Lilo & Stitch franchise. She is designed to make people sick with her nauseatingly sweet fumes. She appears in the Stitch! anime.

Background

Experiment 255 was the 255th genetic experiment created by Jumba with Hämsterviel's funding. She was designed to make anyone sick with her nauseatingly sweet fumes. 255 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.

All of the experiment pods were released and scattered across the island of Kauai.

Physical appearance

Mrs. Sickly is a light teal Mr. Stenchy-like experiment with golden eyes, puffier antennae and smaller hair.

Powers and abilities

Like Mr. Stenchy, Mrs. Sickly appears disarmingly cute to everyone else except other experiments, but then emits an extremely foul and noxious odor 48 hours after she is activated. Additionally, if Mrs. Sickly's emissions intermix with Mr. Stenchy's sour emissions, the chemical reaction will cause a cataclysmic explosion capable of destroying the planetary body they inhabit.

Appearances

Stitch!

Mrs. Sickly first appeared when Hämsterviel released her along with Mr. Stenchy during Christmas in Japan. As part of his plot, Hämsterviel mass-produced clones of Mr. Stenchy and Mrs. Sickly and sold them to many children across Japan and the rest of the world. This is when it is revealed that if the emissions from these two mix, they have the power to destroy entire planets. This leads to Yuna, Pleakley, Stitch, Jumba, Hämsterviel, and Gantu on a hunt to round up the clones of Mr. Stenchy and Mrs. Sickly in order to save the world's Christmas. After saving the world's Christmas, Mrs. Sickly (and Mr. Stenchy) was dehydrated back into an experiment pod and locked in Jumba's vault. Eventually, Jumba grabbed her pod to help Stitch in his fight against Dark End, but Mrs. Sickly wasn't one of the experiments that was activated. She also appeared in the special Stitch and the Planet of Sand.

Trivia

Gallery


v - e - d
Lilo & Stitch Logo
Media
Films: Lilo & Stitch (video/soundtrack) • Stitch! The Movie (video) • Lilo & Stitch 2: Stitch Has a Glitch (video) • Leroy & Stitch (video) • Lilo & Stitch (2025 film)

Shorts: The Origin of StitchOnce Upon a Studio
Shows: Lilo & Stitch: The SeriesStitch!Stitch & AiChibi Tiny Tales
Soundtracks: Lilo & Stitch: Island FavoritesLilo & Stitch Hawaiian Album
Video Games: Lilo & Stitch (GBA)Lilo & Stitch PinballLilo & Stitch: Hawaiian AdventureLilo & Stitch: Trouble in ParadiseDisney's Stitch: Experiment 626Lilo & Stitch's Island of AdventuresLilo & Stitch 2: Hämsterviel HavocKingdom Hearts IIStitch JamKingdom Hearts: Birth by SleepMotto! Stitch! DSStitch! Super ChefStitch!Now (Stitch Cosplay) • Bomberman: Disney Stitch EditionDisney Magical WorldDisney InfinityDisney Infinity: 2.0 EditionDisney Magical World 2Disney Magic KingdomsDisney Emoji BlitzDisney Crossy RoadDisney Heroes: Battle ModeKingdom Hearts IIIDisney Epic QuestDisney Getaway BlastDisney Dreamlight ValleyDisney SpeedstormTwisted Wonderland
Books: Comic Zone Volume 1: Disney's Lilo & StitchStitch & the SamuraiAgent Stitch

Disney Parks
Disney Animation BuildingDisney Friends of the MonthInnoventionsIt's a Small WorldKaribuni MarketplaceStitch's Great Escape!Stitch EncounterThe Enchanted Tiki Room: Stitch Presents Aloha e Komo Mai!

Entertainment: Lilo & Stitch's Ohana LuauDisney Adventure Friends CavalcadeDisney's Showtime SpectacularDisney's WishesFantasmic!Max LIVE: Gettin’ Goofy With ItMickey and the Magical MapOne Man's Dream II: The Magic Lives OnMickey presents: "Happy Anniversary Disneyland Paris"Stitch's Interplanetary Beach Party BlastStitch's Supersonic CelebrationThe Golden Mickeys
Parades: A Million Splashes of ColourDisney's Dreams On Parade: Moving OnFlights of Fantasy ParadeHappiness is Here ParadeJubilation!Mickey's New Year's Eve ParadeMove It! Shake It! Dance and Play It! Street PartyMickey's Storybook Express
Fireworks: Celebrate the MagicIlluminate! A Nighttime CelebrationCelebrate! Tokyo DisneylandMomentousWonderful World of AnimationWondrous Journeys
Spring: Disney's Easter WonderlandDisney's Spring PromenadeFashionable Easter
Summer: Adventure is Out There!Mickey's WaterWorksStitch's Summer Dance BashStitch and Friends Summer SurpriseSummer Blast
Halloween: Halloween Pop'n LIVERe-Villains! Halloween ParadeScream and Shout Halloween Parade
Christmas: A Totally Tomorrowland ChristmasDisney Christmas StoriesWorld of Color: Season of Light

Characters
Original: StitchLilo PelekaiNani PelekaiJumba JookibaPleakleyDavid KawenaCaptain GantuJacques von HämstervielGrand CouncilwomanGalactic ArmadaUGF TroopersMertle EdmondsElena, Teresa, and YukiSusan HegartyCobra BubblesMoses PulokiMrs. HasagawaMr. and Mrs. PelekaiLukiIce Cream Man

TV series: Mr. WongMrs. EdmondsStacy EdmondsOfficer KahikoKeoni JamesonMr. JamesonVictoriaMrs. PleakleyPixley PleakleyBertley PleakleyCharles and MaryMitzi Suzuki and Kato StewartMerwin and DeanEllen and LonaZach MakeliRingmasterMayor AnoloNicoléDr. Gladys OkraSaraMr. CooperChaps, Manny, and SperkMortlegax
Stitch!: Yuna KamiharaGrammaPennyKennyTaroSashaHiromanJessicaTigerlily SakaiDoloresAni PelekaiBooGooKijimunaaDelia
Stitch & Ai: Wang Ai LingWang JiejieMeiyingQian DahuWang DaiyuMr. DingBaoDim LongScratchJaboodieJumba's Chinese Experiments
Video game characters: Dr. Habbitrale
Experiments: ChopsueySparkyReubenJamDiggerMaryHuggoSlimyRichterPhantasmoClipMr. StenchySpookyHolioCannonballGigiYinYangKixxSplodyheadAmnesioSwirlyFibberTankSproutElasticoYaarp627DeforestatorZapTopperMeltyHoudiniFudgySinkerNosyFinderSlushyDupeHeatThresherPlasmoidHammerfaceShortstuffAngelFelixPoxyHunkahunkaSampleBabyfierBonnieClydeSluggerDrowsySpikeSqueakFrenchfrySwapperShoeBackhoePokiSlickSkipClinkCheckersPJPlootSnootyRetroBelleMorpholomewSpatsHecklerWishy-WashyPhoonBugbyShushLaxRemmyDoubledipGotchuForeheadHockerZawpMulchShredderPixBoomerMannersWoodyWrapperBlowhardDerrickAceGlitchWoopsSnafuNosoxStamenTickle-TummyLinkLeroyCloudyStopgoSplatSproingKernelCarmenZeroShrinkBraggMrs. SicklyPopDorkifierWormholeToonsHertz DonutWelkoLoriderWitchSproutlingSkunkunaDark End
Guest Characters: Kim PossibleRon StoppableWadeDr. DrakkenShegoRufusPenny ProudOscar ProudTrudy ProudBeBe & CeCe ProudSuga MamaPuffT.J. DetweilerVince LaSalleAshley SpinelliGretchen GrundlerMikey BlumbergGus GriswaldMuriel FinsterJake LongLuong Lao ShiFu DogTrixie CarterArthur Spudinski
Others: Elvis PresleyPudgeJimmy the CockroachVarious AliensLeroy ClonesYamato MeisonSergeant C4703BK2704-90210

Episodes
Season One: "Richter" • "Phantasmo" • "Clip" • "Mr. Stenchy" • "Spooky" • "Holio" • "Cannonball" • "Yapper" • "Yin-Yang" • "Kixx" • "Splodyhead" • "Amnesio" • "Swirly" • "Fibber" • "Tank" • "Sprout" • "Elastico" • "Yaarp" • "627" • "The Asteroid" • "Topper" • "Melty" • "Houdini" • "Sinker" • "Nosy" • "Finder" • "Slushy" • "Dupe" • "Shortstuff" • "Angel" • "Felix" • "Poxy" • "Hunkahunka" • "Sample" • "Babyfier" • "Bonnie & Clyde" • "Slugger" • "Bad Stitch" • "Drowsy"

Season Two: "Spike" • "Frenchfry" • "Swapper" • "Shoe" • "Slick" • "Skip" • "Checkers" • "PJ" • "Ploot" • "Snooty" • "Retro" • "Belle" • "Morpholomew" • "Spats" • "Heckler" • "Wishy-Washy" • "Phoon" • "Bugby" • "Rufus" • "Shush" • "Lax" • "Remmy" • "Mrs. Hasagawa's Cats/Ace" • "Glitch/Woops" • "Snafu" • "Link"

Songs
He Mele No LiloHeartbreak HotelStuck on YouSuspicious Minds(You're the) Devil in DisguiseHawaiian Roller Coaster RideAloha ʻOeHound DogBurning LoveCan't Help Falling in LoveLahainaRubberneckin'I Need Your Love TonightA Little Less ConversationAlwaysAloha, E Komo MaiI'm So Lonesome I Could CryJailhouse RockDon't Be Cruel
Locations
HawaiiHonoluluKokaua TownLahui BeachLilo's HouseAloha Animal RescueHasagawa FruitsKaiāulu HaleMertle's HouseBirds of Paradise HotelKilauea LighthouseRental HutMuscle BayKiki's Coffee HutBeauty ParlorMartMacki Macaw'sLuki's Shave IceJumba & Pleakley's Bed & Not BreakfastWaialeale PeakKauai AirportTuroPlorgonarPrison Asteroid K-37Galaxy Defense IndustriesLihue AirportIzayoi IslandIzayoi Elementary School
Objects
Experiment PodsExperiment Pod ContainerJumba's ComputerPlasma BlasterNet CannonGalactic CommunicatorPrison CapsuleFusion ChamberTime MachineReducer RayProtoplasmic Growth RayPlasmatic EnglobulatronScrumpLilo's Experiment BookStitch's SpacesuitStitch's NecklaceChitama Spiritual StoneGood Deed Counter
Vehicles/Spaceships
Jumba's ShipGantu's ShipPolice CruisersThe Red OneDr. Hämsterviel's ShipManta ShuttleHovercraftX-BuggyFederation ShipB.R.B. 9000G.A.C.C. Ship
See Also
Unconfirmed ExperimentsTantalog languagePelekai ʻohana"The 747 Sequence"Stitch Crashes DisneyStitch Attacks Snacks
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