If You're So Smart, Why Aren't You Rich?.Edward Nygma creates the video game The Riddle of the Minotaur for the company Competitron, but is fired by his superior Daniel Mockridge, who wants the profits for himself. Nygma vows revenge, and takes up the mantle of the Riddler two years later. While Batman sympathizes with Nygma, he and Robin find themselves forced to stop him before he kills Mockridge in a life-sized version of the Minotaur maze. Despite successfully rescuing Mockridge, who complete a deal to move his company to Gotham, the incident leaves him in a permanent all-consuming fear of Nygma's return for revenge.