Laean wrote:in hard mode, you can't just go with purple and homing. you won't be able to kill the stronger badguys fast enough, and soon your entire screen will be filled with enemy planes. got to either use blue and homing or purple and straight missles.
on hard mode i ended up using about 9 of the 15 lives.
I've noticed the difference in power of the homing missels vs. straight missles and have started using the straight missels instead. Still use the purple though, unless I get a powerup immediately before the boss, then I go with the blue and get back to purple as quickly as possible on the next level.