You are on a moon-based scouting mission in a Mark 16 Starcruiser. Suddenly, enemy alien ships teleport in and start firing neutron missiles, which can destroy you upon impact. You must destroy enemy ships until reinforcements arrive from Earth. The enemy also have laser-directed heat-seeking proton missiles which are fired sparingly. Be aware that as the battle progresses, the aliens will become more desperate and will use the laser-directed heat-seeking proton missiles more often.
You can move in any of the eight directions in the bottom third of the screen. Press the button to fire.
Scoring
Minimum heat seeking missile variations:
Level one alien=125 points
Level two alien=200 points
Level three alien=275 points
Shooting an alien missile=50 points
Maximum heat-seeking missile variations:
Level one aliens=175 points
Level two aliens=250 points
Level three aliens=325 points
Shooting an alien missile=100 points
You reach level two at 10,000 points. You reach level three at 40,000 points. You can also start at these levels in certain game variations (see Game variations below)
Difficulty switches
A=Your shots are slower
B=Your shots are faster
Game variations
Games 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, and 23=One player
Games 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24=Two player
There are limited heat-seeking missiles on games 1, 2, 3, 4, 5, 6, 13, 14 ,15 ,16, 17, and 18
There are maximum heat seeking missiles on games 7, 8, 9, 10, 11, 12, 19, 20, 21, 22, 23, and 24
Enemies start at level one on games 1, 2, 7, 8, 13, 14, 19, and 20
Enemies start at level two on games 3, 4, 9, 10, 15, 16, 21, and 22
Enemies start at level three on games 5, 6, 11, 12, 17, 18, 23, and 24
Game is in daytime on game 1 through 12
Game is in nighttime on games 13 through 24. |