10 Awesome Video Game Villains That Only Appeared ONCE

10. Arkham - Batman: The Telltale Series

In Batman: The Telltale Series, Bruce Wayne is caught in a scandal after a conspiracy surrounding his parents goes public. Over time, the World's Greatest Detective learns this revelation is tied to a new villain called Arkham, who's hellbent in destroying Bruce's reputation.

Considering Batman has a legion of iconic foes, it seems odd at first how this point-and-click adventure focuses on a brand-new baddie (especially one with such a unoriginal appearance and name). 

But what makes Arkham so interesting is how this criminal mastermind's scheme is directed at Bruce Wayne, not Batman, making their rivalry more personal. Arkham is far more effective than most of Batman's rogue gallery, since the masked supervillain swiftly turns Gotham against the playboy billionaire and causes irreversible damage to his personal life.

Without giving the game away, it's a real shocker when Arkham's identity is revealed, since Bruce (and the player) truly trusted them. Learning about the sadistic killer's backstory is heartbreaking, since it becomes clear Arkham's resentment toward Bruce is understandable and somewhat justified.

Despite being a well-written and memorable villain, Arkham hasn't appeared in any Batman property since.