Puffer-Alien

A Puffer-Alien is a sapient alien creature, named for their ability to rapidly inflate their bodies when startled: a defense mechanism similar to that of a pufferfish.

Biology
Puffer-Aliens are cylindrical creatures, somewhat resembling humanoid cacti when not inflated. They have stubby arms with four digits, and a couple of human-like eyes with white sclerae. They don't seem to have teeth, and their diet is not known, other than that they consume donuts (indicating that they might be omnivorous).

Appearances

 * Brewster Rockit: Space Guy!