Update 4:45 p.m.: Looks like the Controller's Office took the Easter Egg down and the code no longer works. Ah, well. Fun while it lasted.
A Redditor just discovered a fun easter egg on a web page run by the Los Angeles City Controller's office.
So, quick: go to this page. Using the arrows on your keyboard, type up up, down down, left right, left right, b a, enter. If you do it right, a little white arrow will appear in the top left of the screen. Press the space bar and watch as the arrow shoots lasers and blow up different payroll numbers, webpage elements or even the L.A. city seal.
The easter egg is activated by the famous Konami Code, a time-honored cheat code first associated with video games created by Japanese video game maker Konami. But it's gone on to make cameos in all kinds of video games, and was even referenced in Disney's Wreck-It Ralph.
So while you still can, try it out! And let us know your score in the comments.