Sorry that you didn't have a good experience with the game. I agree that the starting HP could be lowered a lot. The starting hp value was set way before health power ups were added and I never went back to change it. As for the lack of feed back, I'm not exactly sure what you mean. When you kill an alien, you get a chance to get a power up and a big explosion. Could you please elaborate on what you would want to see in terms of feedback?