If you didn’t have enough of a reason to continue playing Batman: Arkham City, pop that disc back into your platform of choice and prepare for some fun. Rocksteady has again given players even more content to stumble upon, this time in the form of a throwback style easter egg.

Youtube user SuperSwiftyOne discovered that by pulling out Batman’s Cryptographic Sequener, holding down the left and right trigger, and rotating the left and right analog sticks in counter-clockwise and clockwise directions respectively, the characters within the game will have their heads expanded in Big Head Mode. It’s an arcade game standby that Rocksteady has worked into Arkham City. Nothing more rewarding than watching a bobble-head looking Batman punch balloon-headed criminals in the face. Check it out in the video below: