How about this ideas – Eve of Impact Review

When u blow up moon -a window appears and shows its effect upon the planet - like a 1mile high wave that's about to break on a city. I know it's genius right? And diff kinds of missiles , and a ray gun that opens a worm hole & ofcourse another one that closes it. And different evac ships that go faster,slower, and move in different ways-. That's just off top of my head
Review by kanex7z on Eve of Impact.