Friday, A.K.A. Experiment 580, is an illegal genetic experiment created by Jumba Jookiba. She is designed to make people have a freaky day by switching bodies.
Experiment 580 was the 580th genetic experiment created by Jumba with Hämsterviel's funding. She was designed to make people have a freaky day.
580 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 an unknown point, she was activated, captured, tamed and named Friday.