Exterminator by Gottlieb / Premier Tech.
(2x TMS34010, 2x M6502)
A weird but super fun game
TIP#1: Map the spinner to joystick Left/Right using the "Map Digital" checkbox - this way you can aim the laserbeam with the same joystick that moves the "Hand".
TIP#2: you can only shoot from the far left side of the screen, holding fire locks your hand in place, but you can aim left/right with the spinner or joystick if you used TIP#1