A balloon-bursting game for providing amusement to individuals at events by striking a pneumatic striker to inflate the balloon until it bursts. The inventive device includes a striker mechanism for pneumatically compressing air into an air tube when struck or depressed, a vertical shaft comprised of a base structure and housing, a balloon nozzle and piercing frame attached to the top of the vertical shaft, and an air tube connected by a nozzle from the striker mechanism through a monodirectional controlling valve and housing to the bottom end of the balloon nozzle. In use, with an uninflated balloon secured to the balloon nozzle, a hammer or similar object, or means of jumping up and down upon the striker mechanism, repeatedly depresses the striker mechanism, forcing air through the tube, valve and nozzle into the balloon, so that the balloon expands to a size sufficient to press against the piercing frame and burst.