Having that loud intro is bad enough, but having to start the game to be able to even turn off the sound is worse... that the game is rather random and shoddy in it's bouncing physics makes it three strikes and you are getting one star.
Strange, at day 41 of the campaign my gunmen just stopped firing. And since my whole defense was based around them it quickly lost me the game. If it had happened at 39 and lost me the badge I'd be pretty mad.