Yin

Yin
Background information
Feature films	Leroy & Stitch
Shows	Lilo & Stitch: The Series
Voice	Frank Welker
Character information
Other names	Experiment 501
Occupation	Jumba's 501st experiment, water sprayer
Home	Hawaii
Likes	Spraying water, Yang
Dislikes	Being aggravated or captured
Powers and abilities	Can absorb water into her head through her tentacles, and then release the stored water in powerful sprays when she wishes; it is also shown that when Yin and Yang combine their powers, they are able to create rock/land

Yin, A.K.A. Experiment 501, is an illegal genetic experiment created by Jumba Jookiba. She is designed to attack with blasts of water. Her one true place is creating a new island with Yang.

Personality

Yin was shown to be sly, short-tempered and mischievous before her rehabilitation. She is also shown to not really care about other people's surroundings.

An experiment of few words, Yin is a rather single-minded individual. She will focus only on what's right in front of her and pay little heed to anything else going on around her, though this isn't to say that she's stupid. Rather, this demonstrates somewhat of an overconfidence in her own powers, as Yin believes them more than adequate to handle any threat. She has a bit of a careless streak as well, and (once she masters speaking English more) picks up a tendency to be boastful. However, she would defend her friends loyally – that is, if she had any other than Yang – although she doesn't see the need for "ʻohana" or "cousins."

Appearances

Lilo & Stitch: The Series

Experiment 501 was the 501st genetic experiment created by Jumba with Hämsterviel's funding. She was designed to spray massive blasts of water from her tentacles. 501 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 501's pod landing in a palm tree.

501's pod fell out of the tree and into a pool below, where a woman was soaking peacefully, activating the experiment. 501 then absorbed the pool's water and, armed, set out to cause chaos.

501 traveled to the beach, where she was discovered by a little boy. When the boy squirted 501 with a super-soaker, the latter simply responded by attacking him and the rest of the beach with blasts of surging water.

501 later attacked Kokaua Town. Stitch tied 501's tentacles together to render her defenseless, but this only caused her pain and her stored water to gush out and cause a flash flood.

Afterwards, 501 most likely searched for another available water source and continued her rampage.

Stitch's incompetence caused a rift between him and Lilo, and each of them insisted that they could catch an experiment without the other. Stitch then joined up with Jumba, and Lilo joined up with Pleakley to find out.

501 was later chased by Lilo and Pleakley through a jungle, but the two failed to catch the former. While draining a pond to arm herself, Experiments 501 and 502 met for the first time. Jumba erroneously stated that if they both touched, Earth would likely be destroyed. However, they were ambushed and captured in containment orbs by Gantu before they could make physical contact.

While returning to his ship with the two captured experiments, Gantu fell for a trap laid by Experiment 625, allowing 501 and 502 to escape.

When Stitch later tracked 501 down to a backyard, the latter used a running tap to gain an infinite supply of water to use as ammo. However, her ammo ran out when Lilo turned the tap off, allowing Stitch to easily capture 501 in a container.

501 and 502 were then rehabilitated, named Yin and Yang, and given a one true place using their combined powers to create a whole new island.

Yin reappeared in "Elastico" as one of the audience for Lilo's hula dance.

In "Houdini", Yin was one of the audience for Stitch's bungled magic act.

In "Finder",  Yin was seen playing poker with Stitch, Yang, Richter and Cannonball.

In "Dupe", Yin was one of the experiments who came to Lilo and Stitch's slumber party wearing a bathrobe and matching nightcap. However, she was forced by Pleakley to leave due to her destructive behavior.

In "Angel", Yin was one of the experiments whom Angel reverted to evil using her song. Later, Yin and the other depraved experiments attacked Stitch aboard a ship, but Angel turned them back to good before they could finish Stitch off. Working together, the experiments were then able to successfully escape the ship.

Yin reappeared in "Slugger" as part of Lilo's softball team.

In "Shoe", Yin was one of the experiments who helped turn Jumba's ship into a hotel.

Yin was one of the experiments in "Checkers" who joined Stitch in a rebellion against Gantu. Earlier in the episode, she helped Lilo make mud.

In "Ace", when the head of E.G.O arrived on Earth to decide whether or not Jumba was still evil, Yin and Yang posed as mutant creations as part of a hoax to fool the head of E.G.O.

Leroy & Stitch

In the film's opening, Yin can be seen waving hello to Lilo, along with Yang and Cannonball. Yin and Yang were also seen later in the movie as Lilo was making her rounds with Scrump to make sure all the experiments were happy in the one true place they belonged.

Later, the first 624 experiments, including Yin and Yang, 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.

Yin and Yang participated in the following battle between the experiments and the Leroy clones by using their combined powers to encase Leroys in rock. Yin also sprayed water at Leroys until a Leroy clone completely tied her up, leaving her powerless and Yang to fight on his own.

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 `Oe", which caused the Leroy army to shut down due to the original Leroy's fail-safe.

Trivia

• Although Yin is actually a female, Lilo erroneously referred to Yin as a male.
• Though Yin apparently has no mouth, a mouth is seen on her in "Angel" when she and other experiments carry Stitch out of a ship, which Angel had lured him into. A mouth is also seen on Yin in "Slugger" when she and the other experiments watch Lilo and Mertle argue over the game rematch.
• Her name is derived from the concept of Yin and Yang; in this case her name stems from the force of Yin, which represents femininity, water and cold, fitting her nature.
• Yin's pod color is blue.
• Yin is described by the experiment computer screen as, "Experiment 501. Primary function: Water sprayer."
• Yin's head and body appear in the online game Jumba's Lab.

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