Elastico

Elastico, A.K.A. Experiment 345, is an illegal genetic experiment created by Jumba Jookiba. He is designed to distract enemies by performing tricks with his elastic body. His one true place is with the circus.

Bio
Experiment 345 was the 345st genetic experiment created by Jumba with Hämsterviel's funding. He was designed to distract enemies by performing tricks with his elastic body.

345 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.

Lilo & Stitch: The Series
At an unknown point, Experiment 345 was activated.

345, named Elastico, found his way to an international circus and was named by his ringmaster. Stitch followed him to the circus and tried to capture him, but Elastico turned the whole thing into a game. Eventually, Elastico calmed down when Stitch grabbed him and called him "cousin."

Later, Gantu came and took Elastico, much to the ringmaster's disappointment. Upon noticing Stitch and his incredible stunts, the ringmaster decided to let Stitch fill in for Elastico.

Gantu tried to teleport Elastico to Hämsterviel, but he put up quite a fight and was proven difficult for Gantu to grab. Eventually, Gantu did catch him and put him in shackles, but Elastico stretched out of the shackles and under the glass of the teleportation chamber.

Elastico somehow packaged himself and then sent himself back to the circus in a shipping box. Lilo and Stitch then decided that Elastico's one true place was to stay at the circus.

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

Leroy & Stitch
The first 624 experiments, including Elastico, 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.

Elastico participated in the following battle between the experiments and the Leroy clones by strangling Leroys with his elastic body.

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.