section and is provided adjacent to the distal end thereof with a magnetic metallic insert 53 the distal end of the drive lever 50 defines a bearing tip 54 which is disposed for camming engagement with the camming surface 44 of the drive cam 40 as is best illustrated in fig3 and 4 a generally c shaped permanent magnet 55 is fixedly secured in a support bracket 56 on the mounting plate 31 as by a fastener 57 the permanent magnet 55 has legs 58 which project a predetermined distance beyond the support bracket 56 for engagement with the magnetic insert 53 on the drive lever 50 the propulsion apparatus 30 also includes an actuating assembly generally designated by the numeral 60 with includes a hollow handle sheath 61 mounted on the raised end wall 23 of the game 20 above the aperture 27 therein an elongated lever 62 extends through the apertures 27 and 28 and is mounted intermediate its ends for pivotal movement about the axis of a pivot pin 63 supported between a pair of brackets 64 carried by the handle sheath 61 the lever 62 has an enlarged trigger portion 65 disposed within the handle sheath 61 and projecting forwardly therefrom beyond a curved recess 66 in the.