Kixx

Kixx, A.K.A. Experiment 601, is an illegal genetic experiment created by Jumba Jookiba. He is designed to use his superhuman strength and kickboxing skills to bully others. His one true place is teaching kickboxing. Kixx is voiced by Frank Welker.

Bio
Experiment 601 was the 601st experiment to be created by Jumba with Hämsterviel's funding. He was designed to use his kickboxing skills to beat up all and any opponents..

601 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 601's pod landing by a cliff face.

Lilo & Stitch: The Series
When a tourist threw a half-full water bottle over the cliff, it landed by 601's pod and trickled out water which touched the pod, activating 601. 601 then attacked a couple, beating them up when the husband angered him.

601 then proceeded to attack and beat up anyone who stood in his path.

When Lilo and Stitch arrived to find and capture 601, the latter attacked them. Stitch prepared to fight 601, but due to an earlier incident in which Stitch's combat training was erased, Lilo and Stitch were forced to retreat while 601 was distracted with beating up the newly-arrived Gantu.

While 601 was on a rampage, Lilo re-trained Stitch and taught him how to fight in combat.

Later, 601 attacked a beach, defeating all the boxers with ease before Stitch arrived for a rematch. At first, 601 was able to easily overpower Stitch, but with Lilo's co-ordination, Stitch was able to defeat 601.

601, christened Kixx, was then found a one true place teaching kickboxing. Kixx hosted his own workout video, which was watched by Experiment 625 and an injured Gantu.

Kixx reappeared in "Elastico."

In "The Asteroid," Kixx was one of the six experiments who Stitch convinced to come with him and Lilo to save Earth from an approaching asteroid. During the journey, Kixx kicked the back of Spooky's seat, causing the latter to terrify him. Also, when Pleakley hit Kixx for grabbing at the free soda and peanuts, the latter beat Pleakley up and took a bag of peanuts for himself. He later helped Stitch remove the ship's hyperdrive engine.

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

In "Angel," Kixx was one of the experiments who Angel reverted to evil using her song. As a result, Kixx began beating up tourists for Angel, forcing Stitch to fight and defeat him. Later, Kixx and the other dehabilitated experiments attacked Stitch aboard a ship, but Angel turned them back to good before Kixx could land the fatal blow. Working together, the experiments were then able to successfully escape the ship.

Kixx reappeared in "Slugger."

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

Kixx was one of the experiments in "Checkers" who joined Stitch in a rebellion against Gantu.

In "Ploot," Kixx was one of the first team of experiments (along with Deforestator and Richter) formed to try and stop Ploot. However, Ploot was easily able to defeat them, forcing the three experiments to retreat.

Leroy & Stitch
The first 624 experiments, including Kixx, were round 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.

Kixx participated in the following battle between the experiments and the Leroy clones by beating attacking Leroys up.

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 failsafe.

Personality
Kixx is shown to be a talented kickboxer. He also appears to be slightly hotheaded, and sometimes even a bully. However, after Lilo and Stich befriended him, Kixx has shown to control his temper better.