Alien Outback - Red Ship Shield Cheat (submitted by Bryan a.k.a. Celtic Sunlight)
The following could be considered a cheat, although it is not sure
if it always works. However, this seems to work most of the time:
If you forget to shoot one of the red ships while being right beneath it
and it puts up its shield, press the key you've mapped to the
energy announce function. Under any circumstances, all ships on the screen
will be frozen in place until your energy status has been read out. However,
if under a red ship, and it's shield is active, pressing the energy announce
key will not freeze the shield sound and it will run out.
Meanwhile, the ship hasn't moved! This gives you more time to shoot those
annoying red ships.