Angry at all the birds that have been taking over your phone?KNEE THEM IN THE FACE!Touch and hold the screen to fly upward, touch and hold to fast-fall back down and knee as many birds as you can.Share your best score with your friends on Facebook and watch in joy as rage overcomes them in their attempts to beat it.Quitting is not an option in the world of Flying Knee and must be earned. The exit button unlocks at 5 points.Good luck.