BooGoo

A small, mysterious, purple insect-like alien who looks like a jellyfish or an octopus and has a shapeshifting ability. She is friendly to other people but is mean only to Stitch, whom she frequently harasses and eats food off of, which deeply angers him as he loves to eat. She was discovered by Hämsterviel while he was incarcerated on a Galactic Prison planet, brainwashed by him, and then sent to Earth disguised as a fruit fly to break Stitch's good deed counter (points decrease if you do good things, and points increase if you do bad things). She was found by Jumba as he was fixing the counter, and he removed her brainwashing. From then on, she became a pet of Pleakley, who named her "BooGoo" after the fact that she can only say, "Boo goo!" She does not show her shapeshifting ability much; the only times she actually shapeshifts were in her debut episode (episode 27) and in episode 41, when she turned into a parachute to save Yuna, Jumba, and Pleakley.