Bang (it may have many other names) is a children's party game that needs lots of concentration, fast reactions and gun play.
Everyone forms a circle with one gun toting player standing alone in the middle. This player spins around, arms extended with an imaginary gun in their hands. Without warning they point this gun at one player in the circle and shout, 'BANG'. On being shot this player rapidly crouches down which means the the two players that are standing on either side of them must raise their own hands in a gun shape and try and shoot (shout BANG) each other first. The player that achieves this first remains in the game, the other player collapses to the floor (dead) and plays no further part in the game. The original player to be targeted also (bizarrely) returns to the game. The player in the centre then begins another round and the game continues until there a winner is found.