a blast from the past and its old to see below.

This number 27 invaders and it has 1-4 daylight invasion games and then 5-8 night assault and 9-16 as above but without protective barriers

This is old school technology

The machines and cartridges are

Suitable for acetronic, radofin and printztronic microprocessor systems

Can not be sure if it still works or not but even just has a collectible what a great piece of history