Happy Tree Friends Flippy Attack. Yes, the name may sound benign, but the game, though cheery in graphics, really isn’t so much. A rabbit runs around presumably in a trench being shot at by a guy up top with a machine gun. You’re the rabbit, and you must dodge the bullets or die. All you can do is move left, right, or jump. Each bullet that hits you causes blood to flow out until the end. Scoring is done (apparently in German) in seconds you last. How long can you last?