Google just notified me that they re-rated my Android Game, K-Space Shooter
from 'For Everyone' to 'Low maturity'. Not sure why. The game does not include Alcohol, Tobacco and Drugs, Gambling, Hate, has no access the the users Location, doesn't do Profanity or Crude Humor, Sexual or Suggestive Content, and doesn't include User Generated Content or User to User Communication. I don't think that what you can do in the game classifies as mild cartoon or fantasy violence either.
So not sure if Google's re-rating my App makes any sense. Especially if they tell me that "additional content rating modifications by the Android Market Team may result in administrative action, up to and including suspension of subsequent violations". Hmpf.