Published three times a week on its own website, it features the fictional adventures of a character named Dr. McNinja, a thirty-five-year-old doctor who is also a ninja.
During a drawing contest involving a characterization of user screen names, Hastings drew an image of Dr. McNinja behind his desk with a sword on his wall and a speech bubble reading, "Should anyone need the services of a ninja or a doctor, my office is always open.
Starting in August 2008, comics began to be drawn in full color, provided by Carly Monardo (the author's wife).
Dr. McNinja won the 2007 Web Cartoonist's Choice Award for Outstanding Superhero / Action Comic.
[9] In April 2012, Christopher Hastings entered a partnership with Fat Cat Gameworks to create a video game based on the comic for mobile and web.