The Flu is a floating, light green bacterium with humanoid characteristics. He has yellow gush that pops out of him and out of his mouth, and from his nose when he crashes into something. He has lime green spots on him. The Flu has no arms or legs.
Abilities and Powers
It is not exactly known his abilities or powers other than just hovering. Due to being based on the actual disease of the same name, it is likely to he makes people sick.
In "Let's Be Heroes", he is in a fight with Punching Judy in front of Carol's and K.O.'s view. He is unsuccessful and lands on top of Carol's windshields. Carol turns on her windshields to move him out of her view. Carol encourages Punching Judy to go get him.
Based from K.O.'s reaction, it is known that he and Punching Judy had been into fights for more than one time and keeps losing to her. K.O. showed disgust when he landed on Carol's car.