In a world dominated by violent media, Americans are no more eager to go to war than they were in the 1980s or the 1960s or the 1940s. Hasn't it always been someone else's problem?
The overwhelming majority would rather go on thinking it had nothing to do with them and there...
Go for the Space Tiffin on every level, for you'll get extra points and a power boost.
Focus on the green and red blobs - those are the ones you need to kill to finish the level.
You can shoot the triangular walls that get in your way.