Guardian - Alligata (1984)

Version of the classic early arcade machine ‘Defender’.  Destroy all aliens whilst protecting the pods on the ground.  Aliens can turn mutant (becoming crazy and trying to self-destruct into you) if they carry a pod to the top of the screen.  Pods can be caught in mid-air for a bonus score.  Your spaceship has a deadly laser beam with limitied amounts of hyperspace and smart bombs.