In this week's update, FarmVille released a new Mystery Game in the Market, calling it "better than a mystery box." (We'll see about that!) If you want to play the Mystery Game, head to the Market and look under the Decorations tab. For the next six days, you will be able to play the game ... provided you're willing to part with 20 Farm Cash.
If you decide to take the plunge, press 'Play,' and you'll be given access to a Pop the Balloons! game. The game itself is pretty simple, just aim using the mouse and then click once you've targeted your balloon.
Once the balloon pops, you'll be rewarded with a mystery animal, which you will be able to find in your gift box. I played a single round of the Pop the Balloon! game and was rewarded with a handsome Black Stallion. If you want to try your luck again and throw another dart, you will have to pay an additional 20 Farm Cash.