Ben10UA on Instagram: "Goop is a Polymorph alien from the planet Viscosia in the Ben 10 series, notable for his amorphous, green slime body that is animated and controlled by an anti-gravity projector hovering above him. Goop’s form allows him to reshuffle and reshape himself at will, making him virtually immune to most physical damage and enabling him to slip through small spaces or reform if his body is scattered."