This hidden Dying Light 2 blueprint gives you a literal finger gun

pcgamer.com:

Want to find Dying Light 2's secret developer room and the blueprint for The Left Finger of gloVa? Or did you read that and say «How to find what the what? And the what?» Don't worry. Either way, I'll explain.

Big open world games are a great place for developers to hide secrets, and in this case Techland has hidden an entire room filled with references to past Techland games and the blueprint for a weapon called The Left Finger of gloVa—which is a nod to The Left Hand of gloVA, a weapon from Dead Island, and The Right Hand of gloVA, a weapon from the original Dying Light. The name itself is a reference to lead designer Bartosz «Glova» Kulon.

And The Left Finger of gloVa is absolutely a weapon worth having. You know what finger guns are, the gesture where you point at someone as if your hand was a gun. But instead of making a little clicking sound, this finger gun actually works. It's both funny and effective, a legit hand cannon:

The blueprint for the The Left Finger of gloVa is hidden in a skyscraper in the Garrison District. First, you should finish the story mission Broadcast, a lengthy challenge that involves scaling the tallest building in the city, the VNC Tower, in part by using the grappling hook acquired in that same mission. Once you complete Broadcast, you can quickly get back up to the top of the VNC Tower first by using the winch at street level and then the elevator inside the building (it's close to the bed and player stash) to get to the roof.

Once you're up there, take a look off the side of the building to the south west. You'll see another skyscraper with a long antenna on top and a parachute from an airdrop hanging off the corner. You need to make it to that roof, so leap off and use your glider.