When a team of astronauts investigated a meteorite which had crash-landed on Earth's moon from a spontaneous wormhole, the discovery of a nigh-indestructible, semi-sentient substance named Oxymorax buried deep within the meteorite's core was thought to be the scientific breakthrough of the decade. With the unusual power to completely alter its physical structure on a molecular level, create and reabsorb its own matter and transfer its properties to anything it came into contact with, it was thought that the mysterious Oxymorax would bring about a new age of technological engineering. When an imcompetent janitor accidentally exposed it to a drop of his blood, however, the unexpected and violent reaction that ensued transformed the semi-sentient mucus into a fully-sentient humanoid creature. Escaping from captivity, the creature was taken in off the streets by a lonely cartoonist and subsequently spent the first three years of its life watching cartoons, reading comic books, eating junk food and browsing the internet. When it finally reemerged to chase down his adoptive 'father's' mugger, the damage of its unorthodox upbringing had been done and it took to the streets as Screwball -- the screw-loose superhero with a 'unique' approach to fighting crime and a tenuous grip on everything else.

Though his various eccentricities and almost satirical approach to superheroics can make him somewhat difficult to understand much less work with, Screwball is bursting at the seams with innocence, glee, enthusiasm and just about anything else his unique physiology can muster. While his lack of human perspective and identity issues sometimes make him an outcast in a world incapable of accepting him, he devotes himself, body, mind and humour, to the fight against injustice just as much as any Earth-born hero. He just prefers to have a little more fun in the process.