You are a spooky, scary skeleton. You take selfies. That is the whole joke. It's fantastic.
OK, there's a bit more to it than that, but not much. Spooky Selfies is a free game where you walk — or, you know, skulk — around a graveyard and take selfies. It's simple and dumb and, for roughly two minutes of your life, the funniest thing on earth.
And now it's your turn: post your best skeleton selfies. Or don't. How you interact with a dumb joke after it's far outlived its natural lifespan is your call — and yours alone. Just remember to selfie responsibly, even when you're pretending to be a virtual skeleton.