Flurgle is an alien dog-pig that resides as a pet on a spaceship in Space World. Due to a teleportation accident, Penn temporarily gets fused with the Flurgle during a mission in "Flurgle Burgle".
The Flurgle has a blue green chimpanzee-like face with three orange eyes and purple pupils. It has an orange body with yellow splotches on its back, eight short legs, and two feathers as his tail, one yellow and the other magenta. On top of its head is a long tentacle that has a blue green, six-pointed, star-shaped tip with nostrils at the end.