In the original pulp ending, O'Neil dies immediately after killing his nemesis, Tutt Strawhan. 2. Modern Reimagining (2013)
In 2013, writer Simon Spurrier and artist Jeff Stokely revived the character for , transforming the pulp premise into a complex sci-fi epic. Six Gun Gorilla
A gorilla named O'Neil is kidnapped from Africa and sold to a Colorado prospector, Bart Masters. In the original pulp ending, O'Neil dies immediately
After Masters is murdered by the "Strawhan Gang," O'Neil—who had been taught to shoot by his owner—sets out on a "vengeance trail" to hunt down the killers. In the original pulp ending