A very nice Japanese man with a very nice Japanese haircut called Tomohiro Nishikado once had the inspired idea to make a video game about shooting white goo at a rampaging invasion of wobbling blobs. And so, in 1978, Space Invaders was born.

It's a simple game with simple graphics, but it has one of the most vital assets for any computer game: gameplay. Modern games seem to forget this with their fancy "3D graphics" and "millions of dollars". These little white dots are all you need.

The more aliens you shoot, the faster the remaining aliens move. If they get too close, it's game over — so shoot quick. And watch out for that flying saucer...