Apple’s intelligent assistant Siri has been known to give us a few hidden Easter Eggs in the past. Of course, she’ll give you directions, tell you the time, play a song or set a reminder for you but if you press her enough, with every new iOS update, Siri gets a little sassier. If you’ve never tried it, go ahead and ask Siri what the answer is to “zero divided by zero” and she’ll take this math problem and raise something along the lines of:

“Imagine that you have zero cookies, and you split them evenly among zero friends. How many cookies does each person get? See? It doesn’t make sense. And Cookie Monster is sad that there are no cookies. And you are sad that you have no friends.” 

Siri has toned down the harshness somewhat with the release of iOS 10’s most recent Easter Egg which has been inspired by the Lego Batman Movie currently out in cinemas. So, how do you release it? Start Siri with your usual “Hey Siri” and then press the listening icon (microphone) before saying “Hey ‘Puter”. This is apparently all that Siri needs to determine that you are in fact The Dark Knight and from then on she’ll treat you as such.

Gaining inspiration from the movie, she’ll begin to give you comical updates on what is going on in and around Gotham, what Robin is up to and even how Alfred is getting on with the tiling in bathroom of the fifth master bedroom. There’s even a response that says “Welcome home, sir. I have your romcoms queued up, sorted by the decade.” Who knew Batman was such a romantic? These updates tend to be random, so you’ll probably need to say Hey Puter/Pewter a few times before you exhaust them all.

This isn’t the only popular cultural reference we’ve seen from Siri in recent years. After the obsession with Pokémon Go last year, Apple updated Siri with responses inspired by the game and she’s also been known to have hidden references to classic robot movies such as Blade Runner and AI.