This is amazing stuff. These guys hacked into a building's light controls and turned the side of an office building into a game of Space Invaders. This awesomely funny.

Watching this video got me thinking: how would you go about designing and testing something like this prior to actually doing it?

I think I would probably write a super-simple version of the game and test it with a light-board and a couple controllers before trying it on a building. But it couldn't be that much different. How would you do it?