I don't understand why people are confused about the concept of not hitting another building. "Hey boss, we've been commissioned to destroy this building, but there's a tower block next to it." "Oh screw that, let's blow the crap out of everything."
I think they should make this into a disaster movie. "An ordinary day in New York City... UNTIL GIANT COLOURED BLOCKS FALL FROM THE SKY & CREATE PRETTY PATTERNS AMONGST THE SKYSCRAPERS. America will never be the same again."