This image is from a t-shirt that I bought many years ago. I like the way it portrays very recognizable sprites from the classic arcade game Space Invaders as a shadow of 3 dimensional space ships.
I wanted to build my favorite arcade game (Galaga) with my favorite childhood toy (LEGO).
I started with only the bricks that were available at my local LEGO store pick-a-brick wall.
And then I discovered BrickLink.com and have been busy building Galaga ever since.
The resolution of old arcade game sprites matches well with a single lego block.