Fans have discovered The Batman's end credit scene - but it's not where you would expect.
Released last week, the superhero flick - in which Robert Pattinson makes his debut performance as Gotham's Caped Crusader - has already had some rave reviews, and grossed a whopping $128 million at the box office during its opening weekend, per MailOnline.
But many fans were a little disappointed when - after sticking around to watch the credits - they weren't treated with a post-credit bonus scene (as has become the norm in Marvel and DC movies alike).
Instead, the word 'goodbye' rolls up on the screen followed by the URL for www.rataalada.com.
WARNING: The following information may contain spoilers for those of you who haven't yet watched the movie...
In the movie, the website is used by the Riddler to help spread mayhem and chaos throughout Gotham. But it looks like Warner Bros. has created their own replica version of the site for fans to experience.
The bonus material first became accessible on March 2, when the first fan screenings of the movie.
According to The Independent, when the first fans found their way to the site, they were presented with three riddles to solve. The first riddle asked: "Fear he who hides behind one," and the correct answer was "a mask".
Next up was an even more cryptic clue: "What was new, is new again. Rebirth. Restoration. Reformation." The correct answer? According to fans, it was "Renewal".
Last was the hardest puzzle of them all: "I am first a fraud or a trick. Or perhaps a blend of the two. That’s up to your misinterpretation." Fans eventually cracked it with the answer "confusion".
After giving the correct answer to all three riddles, fans were presented with one final cypher - a password protected zipfile named "What_Am_I." Fans found that if they typed in the password "promise", they'd be granted access to file and presented with the movie's secret bonus scene - a Thomas Wayne campaign video from 2001.
In the video, Bruce Wayne's dad can be heard saying: "Instilled in both of us that giving back is not just an obligation, it’s a passion. That is our family’s legacy."
But that's not all - the clip is edited, Riddler style, to include heavy breathing and the graffitied words: "HUSH!" and "THE TRUTH ABOUT GOTHAM!"
As well as the bonus scene, the website also presented fans with a new cipher to solve - and which, according to Twitter, can be decoded to reveal the ominous message: "You think I'm finished but perhaps you don't know the full truth. Every ending is a new beginning. Something is coming."
