On Friday, following Google's earlier announcement that Android 5.0 would be called Lollipop, the company released a new developer build compatible with handsets like the Nexus 5 and Nexus 7. While it wasn't the first preview build for what was previously dubbed the " L release ," it introduced more features that users can expect in the next Android's public launch, including an usual "about" menu Easter egg.

Unlike other Android Easter eggs, however, this one is possibly Google's biggest yet—a fully playable Flappy Bird clone. Like other hidden gems in past OSes, this can be toggled by finding the version number in the system options' "About" section and tapping it repeatedly until a lollipop image pops up.

Android Central confirmed on its test devices that doing this will unlock a Flappy Bird-styled game, and Ars was able to replicate the steps necessary to unlock the same game on our own Lollipop smartphone. In this Flappy Bird clone, tapping the screen made a small, spinning Android logo hop in the air as it tried to fly through lollipop-shaped obstacles. Unlike other clones, some of which were more advanced, the game was as simple—and difficult—as its obvious inspiration. The only major gameplay difference was that on occasion, the game would scroll in the opposite direction when players respawned.

We've already taken a look at some of Lollipop's coming changes by way of flattened designs landing in system apps, and we'll continue digging into developer builds as the OS's public launch nears.