I know I know :( I just want that last achievement. I dislike the game for its repetition and the fact that the tiniest difference in timing causes a largely different result. I have all gold except the last level and have been sitting there pressing reset, shoot for about half an hour. It is an infuriating experience, especially since every other level was so easy. I am back again to try for that achievement xD
Seriously I want to cry after being put through the unbearable experience that was playing this game. in the end I decided that 15 points just wasn't worth it.