Stitch-Eperiment626

Throughout the course of the entire Lilo and Stitch franchise, Stitch is depicted as a character that is unlikable to many people except Lilo (on rare occasions, even she falls out with him, most notably in Lilo and Stitch 2, where she cries out at him that he is "bad, and always will be bad!") due to his destructive and temperamental behavior. It is interesting to note that people who are averse to Stitch, such as Mertle or Hamsterviel, describe him as "ugly and deformed", while people with an affection (like Lilo, Jumba, and Nani) for him describe him as "cute and fluffy". This reflects the basic idea behind Stitch and also his cousins: they do not correspond to many established criteria of good physical appearance, having an extra pair of arms, misshapen heads, or other odd features.

When Stitch is in his "evil" form (which is the true alien form), he is undeniably worrying as his somewhat botched physique underlines his at the time twisted behavior; in his "good" form however (the "dog" form, that is trademarked and the audience most often sees), Stitch's display of emotion at being rejected for his misbehavior and looks while trying to act good for Lilo are meant to make him seem more adorable to the audience. Despite his surface destructiveness, which does not go away even after he has become "good", Stitch is a complex character: according to his creator Jumba, Stitch as a destructive machine was not given a higher purpose in life. Since Stitch is trapped on an island where there are relatively few things to destroy, he has many occasions to reflect on other occupations than evil. It is implied that Stitch destroys only because that is what he is programmed to do; but since he has a personality of his own (a fact that only Lilo truly understands), he also has the choice, even will, not to do so.

Despite having superhuman strength and a high level of computer-intelligence, Stitch is emotionally fragile and has a child-like personality beneath his "monster" appearance. Lilo believes that one reason why he originally pursued his destructiveness was for similar reasons to her own naughtiness, that it was because he was emotionally scarred (for having been made as a monster by Jumba) but received little understanding or sympathy from others. Stitch becomes much more well-meaning after his betterment, but is frequently unable to control all of his impulses to anti-social actions. Fortunately for him, Lilo (and later Reuben and Angel) is always there to support him, and he returns her support willingly.

There is a common misconception from viewers that Lilo is dependent on Stitch for protection and support; if anything, it is Stitch who is more dependent on Lilo. Despite her having her own troubles to contend with, Lilo makes every effort to help Stitch in life, and as the story progresses he becomes more self-conscious and capable of the right decisions thanks to his friend. At the end of the series, Stitch has friends, family, love life and a purpose worth believing in.

While explaining his creation to the Galactic Council early on in Lilo & Stitch, Dr. Jumba gives the following rundown of Stitch's powers: "He is bulletproof, fireproof, shockproof and can think faster than [a] super computer. He can see in the dark and can move objects 3,000 times his size. His only instinct - to destroy everything he touches!"

In the original Lilo & Stitch movie, Jumba claimed that Stitch's "destructive tendency was taking effect", and that he would be irresistibly drawn to large cities to "back up sewers, reverse street signs, and steal everyone's left shoe."

Although we rarely see Stitch shot at with a bullet, he does survive the crash of his spaceship with only a scratch, is only briefly stunned by a fall of several thousand feet, and has to be run over by three tractor-trailers in succession to be knocked out. As for fireproof, he does drive a tanker truck of gasoline into a volcano and ends up only a little singed. Weapons fire from plasma guns seems to cause him discomfort, although he can hold it in his hands long enough to throw the plasma back at his enemies.

Thinking faster than a supercomputer is harder to quantify, but he does escape from captivity fairly ingeniously, builds a model of San Francisco after only glancing at a postcard; grabs a crossword puzzle from the table and finishes it in about 7 seconds; builds a bomb out of a plasma-bolt, a doll and a roller skate; builds a "bucking bronco" out of a toaster, a vacuum cleaner, and a lamp; is able to understand he can use a human as a shield from Jumba, by Pleakly's presence; and generally picks up quickly on what is happening around him. He is also fluent in playing the guitar and driving any sort of vehicle, which can be as simple as riding a tricycle or as complex as piloting inter-galactic spaceships.

His ability to lift objects 3,000 times his own size and weight is seen several times throughout the franchise, including incidents where he picks up a descending blast door, hits Dr. Jumba with a thrown Volkswagen Beetle (shouting gleefully, "blue punch buggy! No punch back!") and stops an 18-wheeled tanker of gasoline dead in its tracks. The reason why Stitch can lift 3000 times his own weight even though he has small arms is because his muscles contain excessive compressed amounts of myofibril in one muscle cell. This muscular arrangement makes Stitch's muscles contract 1000 times faster than a human's muscle can. The ability is sometimes joked about in the later series; for example, in Stitch! The Movie, Hämsterviel, while physically restraining Stitch for a cloning experiment, counters Stitch's strength with restraint devices, that are equal in strength themselves, as Hämsterviel loudly declares, to "three-thousand and one!" times Stitch's own weight.

Pads on Stitch's hands and feet can secrete a sticky substance allowing him to adhere to almost any surface and scale buildings and walls. His skeletal system is very flexible, allowing him to put his feet into his mouth and become a rolling ball and also to allow him to squeeze through tight spaces. Stitch's legs are small, but powerful enough to enable him to jump several feet into the air. His eyes can pick up various forms of light and he can filter out one or the other if necessary. Stitch can see in normal vision (during this mode, his eyes appear black in color), night vision (which is green), infrared (red) and X-ray (bright green). Furthermore, he also can magnify his vision. He also can act as an audio amplifier, radio and/or microphone, illustrated when he uses a claw as the needle on a record player, and the music comes out of his open mouth. He has an acute sense of smell and hearing and is also dexterously skilled in hand-to-hand combat, using all four arms or just two.

Info from: disney.wikia.com/wiki/Stitch