Swirly, A.K.A. Experiment 383, is an illegal genetic experiment created by Jumba Jookiba. He is designed to hypnotize people into obeying the next order or suggestion they hear. If no verbal order or suggestion is issued within a few minutes of the initial hypnosis, the effect is nullified; to break the hypnosis, one need only snap their fingers. His one true place is hypnotizing people at children's parties.


Experiment 383 was the 383rd genetic experiment created by Jumba with Hämsterviel's funding. He was designed to hypnotize his victims into obeying the next order or suggestion they heard. 383 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, with 383's pod landing on a beach shore.

Lilo & Stitch: The Series

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Swirly after being activated

When a small ocean wave lapped against the shore, 383's pod got wet from the incoming tide, activating the experiment. 383 then hypnotized a surfer, who had witnessed his activation, and left the scene.

After hypnotizing a tourist, 383 was ambushed and captured in a container by Gantu. By then, 383 was caught in a fight between Lilo, Stitch and Gantu, which ended with Lilo and Stitch retrieving 383.

Lilo and Stitch then took 383, named Swirly, back to their house, where they attempted to hide him from Nani. However, in the ensuing chaos, Swirly hypnotized both Lilo and Stitch and escaped outside.

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Hypnotizing Stitch

Gantu later recaptured Swirly and was briefly hypnotized by the latter back at his ship. Experiment 625 was fascinated by this and amused himself by making Gantu do silly stuff. Hämsterviel also became intrigued upon seeing this, and toyed with Gantu a bit before snapping him out of his trance. Hämsterviel then told Gantu his clever scheme that involved using Swirly on the Look at This! show.

Later, Gantu arrived at the studio, where he used Swirly to hypnotize the manager into putting him on the Look at This! show. He then planned to have Swirly turn the show's viewers into slaves. Lilo and Stitch, who just so happened to be on the show, were still under Swirly's hypnosis from before.

Jumba, who was watching the show on TV back home, soon found out what was going on. He then came to the show in person and managed to snap Lilo and Stitch out of their trances so they could rescue Swirly.

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Gantu using Swirly's hypnosis

Gantu attempted to hypnotize the show's viewers into slaves using Swirly, but Lilo and Stitch ultimately left Gantu holding the bag by recapturing Swirly. He was later found a one true place at children's parties using his hypnosis on others, especially Mertle.

In "The Asteroid", Swirly was one of the six experiments that Stitch convinced to come with him and Lilo to save Earth from an approaching asteroid. During the journey, Swirly hypnotized the asteroid's local asteroid squatter to prevent him from distracting the others, who all used the ship's hyperdrive engine to safely redirect the asteroid.

Leroy & Stitch

The first 624 experiments, including Swirly, were rounded up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.

Swirly participated in the following battle between the experiments and the Leroy clones by hypnotizing Leroys.

However, the Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song "Aloha ʻOe", which caused the Leroy army to shut down due to the original Leroy's fail-safe.

Stitch! anime

Swirly made an appearance in the Stitch! anime where Hämsterviel used him to hypnotize Stitch into fighting for him. This episode also featured Plasmoid and Splodyhead who helped combat Stitch while he was hypnotized.


Swirly is a troublesome experiment, although very mute at that. He is quite active with his hypnosis, as it is performed at the most inadequate of times to humiliate others, but he himself is otherwise harmless. He often stares into space when not using his powers, being somewhat blank-minded.



Swirly is a small turquoise koala-like experiment with a huge head, an expressionless face with a little mouth, little nose, huge black pupil-less eyes (with white swirling lines when using his powers), rabbit-like ears, a single small antenna on the middle of his head, and a small doglike tail.

Special Abilities

Swirly can hypnotize anyone who looks into his eyes to obey the next order or suggestion they hear by making his eyes swirl.


Swirly's hypnotized victims will snap out of their trance once they hear someone snap their fingers. Also, if no order or suggestion is heard within a few minutes, the effect wears off.


  • When Swirly hypnotizes the Ice Cream Man, his eyes can be seen.
  • Swirly's pod color is yellow.
  • Swirly is described by the experiment computer screen as, "Experiment 383. Primary function: Hypnotizer. Makes victims susceptible to the first suggestion they hear".
  • Swirly's head, antennae and ears appear in the online game Jumba's Lab.


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