Blackhead, A.K.A. Experiment 454, is an illegal genetic experiment created by Jumba Jookiba. He is designed to give you blackheads.
Experiment 454 was the 454th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to give you blackheads.
454 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.
At the unknown point, he was activated, captured, tamed and named Blackhead.