Spike (Lilo & Stitch)

Spike A.K.A. Experiment 319 is an illigal genetric experiment created by Jumba Jookiba. He has the ability to use his quills as projectiles filled with venom that can make any average-brained creatures become 99% goofy and 1% clever. He is rehabiliated and he becomes a great hugger through E.A.R.W.A.X.

Bio
Experiment 309 was the 309th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to create devastating, typhoon-like winds from her trunk.

309 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 540's pod landing on a rooftop.

Lilo and Stitch: The Series
Spike is a large dark blue porcupine-like experiment, with huge white-tipped spines on his tail, back, front legs and head, a red nose, large black eyes, black claws and a long tail that he can throw like darts. He is designed to increase a person's silliness by 99% by pricking them with his spines, leaving that person 1% clever. When Lilo discovers Myrtle cheating in a contest by getting the answers from Teresa, she uses Spike on Teresa to have her give Myrtle completely silly answers. His one true place is hugging--and thus taming--truant experiments at Pleakley's E.A.R.W.A.X. group, after he is given protective armor to cover his silly-inducing spines.

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

Spike participated in the following battle between the experiments and the Leroy clones by shooting his spines, which pricked one of the Leroy clones and caused him to act silly.

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.