A more delicate variant of the usual shooting game. The idea is to rescue the astronaut from the sea by connecting a winch line from the helicopter. The helicopter has a central magnet, so you can connect the balls in a long thread to reach the spaceman. However, the further you get from the chopper, the weaker the magnetic force is, so the more gently you have to hit the lowest ball in the chain. Accuracy was also crucial, as you can see from the picture. Clever and taxing.
 

ORIGIN: UK

VARIANTS: Magnetarget (US)
Moon Target (JP)

Catch A Caterpillar (US)

Like Space Invader, CaC was designed to closely mimic an arcade game of the time, in this case Centipede.