Abstract: A gas-propelled toy comprises a vehicle body having opposed front and rear ends, a cartridge of pressurized gas carried by the vehicle body, the cartridge presents an elongated, tubular neck outlet and a frangible plug terminal adjacent to the end of the neck outlet for preventing release of gas from the cartridge, the cartridge is oriented adjacent to the rear end of the vehicle body with the neck outlet facing rearwardly, and an annular, thrust-enhancing exhaust nozzle having a sidewall disposed about the neck outlet, and an apertured end plate adjacent to and in substantial registry with the plug terminal. The aperture presents an arcuate wall, and is configured for permitting passage therethrough of a firing pin in order to pierce the plug terminal and enhancing the thrust due to the subsequent exhaust of said gas within the cartridge, in order to forwardly propel vehicle body.