If you were looking for the article about the submarine built by Sandy from "Shopping List," then see Sandy's submarine.
Matilda is Mrs. Puff's former pet amoeba who appears in the episode "Spot Returns."
Description[]
Matilda is a tiny translucent light green amoeba. She has one green eye, an antenna, two dark green spots, and four legs on each side of her body.
Role in episode[]
Mrs. Puff is shown petting her before she runs away into the wild.