The series was a commercial half-hour format (22 minutes plus commercials), and each episode contained two self-contained 11 minute cartoon segments. It differed from the earlier incarnations of Mighty Mouse in many ways. It gave Mighty Mouse the secret identity of Mike Mouse, a sidekick in the form of the orphan Scrappy Mouse (who knows the hero's secret identity), heroic colleagues such as the Bat-Bat and his sidekick Tick the Bug Wonder, and the League of Super-Rodents, as well as introduced antagonists like Petey Pate, Big Murray, Madame Marsupial and The Cow (actually a bull, because he is Madame Marsupial's boyfriend and he possesses male traits). The original Mighty Mouse villain Oil Can Harry made a couple of appearances. Pearl Pureheart was not always the damsel in distress, and m