how do you do this lighting thingy

[Paulinsky007]

I was watching tv and some sprint commercial comes on

http://www.youtube.com/watch?v=lW_9SYaWAQg

So i was went looking how to do this so i found a website but still could not find how

http://tochka.jp/pikapika/

This "trick" is really cool and i was wondering if anyone could tell me how to do this lighting.