The game included a leader board and for a limited period, whoever made the high-score each week was gifted a Nintendo 3DS with a copy of Resident Evil: The Mercenaries 3D from Capcom.
"It's time to practice your marksmanship as you get ready to join the War On Horror. Take aim but take care and make every shot count. Resident Evil: The Mercenaries is coming." — Facebook app description
The gameplay involved clicking various enemies that pan across a statically situation camera. Game sessions had a time limit and the player had a limited amount of ammo. The also game also a leader board and the common app option to send Facebook friends your score and challenge them to play.