Don't Hug Me I'm Scared 2 - TIME.Rats are animals that are seen in
Don't Hug Me I'm Scared 2 - TIME
When the puppets learn about the past, there is a building called "Rat Meat & Sons" in the background. A rat can also be seen running behind the person covered in slime.
Roy "uplowds" a video about rats titled "RAT EATS EGG" onto YouTube.