This is a Space Invaders tech demo (shock, horror), with a couple of key conceptual differences to the original arcade game ! - Those being, in this version the game throws multiple attack waves in unison, but the more interesting change is that all of the objects are now destructible in some way. So when an impact occurs between a ship and a bullet for example, the impact chips away these pixels. When the pixel mass gets bellow the threshold, the object dies.
I've been sitting this idea since I was kid playing the Space Invaders Arcade at lunch time. Game play wise, It sort of works, but it needs tweaking to get the balance right. Style wise, I've intentionally gone for that real 1970's look. Didn't really have much choice though, being a programmer and not an graphic artist
The demo (like most of the video in this channel) was written as example to help teach game programming in PlayBasic.
Anyway, I hope this was bit of a trip down memory lane in a parallel universe kind of way.