In Toy Story 3, the three Aliens are first seen in Andy’s realistic play scenario, serving as evil accomplices of One-Eyed Bart (Mr. Potato Head’s character) and Betty (Mrs. Potato Head’s character), providing transportation for their escape by a pink corvette.
The corvette is sliced in half by Buzz Lightyear’s laser, and One-Eyed Bart protects himself, his wife and the Aliens by summoning his “Attack Dog With a Built-In Force Field” (Slinky’s role). The villains are warped to Evil Dr. Porkchop’s spaceship. They also wear a dark blue belt around their waists and a set of dark blue boots on their feet.