Update: Square-Enix has issued a statement explaining the app's disappearance.
"Earlier today we launched an app based around Hitman: Absolution that allowed you to place virtual hits on your Facebook friends," the statement reads. "Those hits would only be viewable by the recipient, and could only be sent to people who were confirmed friends.
"We were wide of the mark with the app, and following feedback from the community we decided the best thing to do was remove it completely and quickly. This we've now done.
"We're sorry for any offense caused by this."
Megarom Interactive has announced that BAFTA winning creative agency Ralph has teamed up with videogame publisher Square Enix to create a personalised video experience that lets fans put a ‘hit’ on their mates on Facebook.