You are confronted with a very serious threat. A merciless space monster, aided by eight robots with rocket launchers, is attacking your planet. You only have one robot at your disposal and four mobile rocket launchers. Three of your rocket launchers are stored safely in rocket-proof bunkers.
It's up to you now to defend your planet by destroying the enemy robots and the invading space monster. What makes it more difficult is, the enemy robots operating from behind rocket-proof protective shields. They shift back and forth however to take pop shots at your robot and his rocket launcher. That's when you have to try and be quick enough to hit them.
Be careful though, somehow they seem to know exactly where you are. You are safe only as long as you hide behind one of your bunkers.
The monster itself, even though he tries to keep out of reach behind his robot lines, is adding his share. If you hit and destroy him, don't be overjoyous. Another one will appear within a few seconds and the battle continues.
If your rocket launcher is hit by an enemy rocket, your robot will survive but is unprotected. It's up to you now to move him to one of your bunkers as quickly as possible. When you press the action button you have another rocket launcher again but the bunker and its protection have disappeared.
When you have succeeded in destroying all invading robots, the monster itself will descend in a final, desperate attempt to destroy your rocket launcher and robot.
If you have lost your fourth and last rocket launcher and have no means left to defend your robot, the space monster will come down too and take your robot.
You score when you succeed in destroying all enemy robots plus the monster. If you lose, the monster scores a point.
The war is over when either party has won ten battles.