Jellax is a droid that Avery sends to help her and Prizma run the charm shop, which is a crystal point in Tokyo. She has the appearance of a woman made entirely of red jel. She can trap her enemies with the jel. She appeared in Sailor Moon R Episode 19, A Charmed Life.
Jellax fought Sailor Jupiter and Sailor Venus and gained the advantage, even when Sailor Mars and Sailor Mercury joined the fight, but met her doom when Serena transformed into Sailor Moon and used Moon Scepter Elimination on her.