Rat, A.K.A. Experiment 217, is an illegal genetic experiment created by Jumba Jookiba. He is designed to rat on enemy plans to the Government.
Experiment 217 was the 217th genetic experiment created by Jumba with Hämsterviel's funding. He was designed to rat on enemy plans to the Government.
217 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 Rat.
Rat looks exactly like Stitch except for having rat-like ears and a long tail.