The premiere of HBO's new crime drama "The Penguin" had an extra treat for sharp-eyed viewers: an Easter egg in the form of an interactive QR code. Based on DC Comics' villainous character the Penguin, the show stars reprising his role of Oswald "Oz" Cobb which starred Robert Pattinson as Bruce Wayne. Oswald is, of course, the true identity of the Penguin, the latest villain trying to reign over the corrupt Gotham City.

“The Penguin,” which premiered on HBO and Max Sept. 19, begins where “The Batman” left off in 2022, with scheming Oswald ready to seize an opportunity created by the Riddler’s devastating attack on Gotham City. Oswald, once a lieutenant for the recently assassinated mob boss Carmine Falcone, is now ready to call the shots on his own.

But first he must face Carmine's son Alberto (Michael Zegen), the heir apparent to the family's criminal operation. A little more than 39 minutes into the action-packed premiere, Oswald and his new young sidekick Victor Aguilar (Rhenzy Feliz) are aboard a train leaving Gotham City. Someone wearing a mask walks through the train, handing out flyers featuring a QR code.

“Scan the code. See Gotham’s true face," the masked man says. After pausing the episode, viewers at home who scanned the code themselves found that it really works.

The code leads to a website called gothamstrueface.com, which quickly redirects to rataalada.com, a website that popped up months before "The Batman" premiered in theaters in March 2022, rep.