As The Joker is such a popular villain, you would think that a series starring him would be a hit. However, his misadventures have been frequently contained to limited series, especially after his first title lasted for only nine issues. Despite attempts to make him a likeable protagonist, the strict rules enforced by the Comics Code Authority meant each issue had to end with him being apprehended. It was one of the ridiculous requirements that villains always be shown to be punished in some way, a tricky situation to try and get around when your lead is one of the biggest bad guys in comics. That limited its scope and it failed to find an audience. Batman never actually appeared surprisingly, but the final issue did promise that the Justice League would appear in the following instalment which was obviously never published die to cancellation.