A water balloon target game for bursting a water filled balloon above a game participant includes a frame of base support members (30, 32), a front and a side participant protector screen (36,38), a plurality of water balloon support members (12, 12a, 12b), a water balloon support seat (14), and an impact activating balloon bursting device (20) with an associated connecting rod (24) which mounts a cocking pin (22) at one end and a target (26) at an opposite end exterior of the frame. The base support members surround a conventional seat (not shown) and provide attachment for the protector screens by hook clips (34) at the front and target sides of the frame. The balloon support seat (14), of a predetermined size and adapted to support a variety of sizes of water balloons, is connected to the balloon support members and is centered above the seat which is occupied by the game participant. In operation, the balloon bursting device is cocked and a filled water balloon is placed on the balloon support seat. When the target is impacted by a projectile such as a tennis ball, the connecting rod pivots, releasing the balloon bursting device thereby bursting the balloon and immediately discharging its contents on the game participant.