Unitrax

The Aim of the Game: destroy the Enemy’s Starships by blowing up the nuclear
reactors using the bombs scattered on the surface of the ships. For placing
the bomb you must decode 3 locks by pressing fire when the “LOG ON” side is
lit. If you make a mistake the starship will detect your meddling and destroy
you. To hinder your progress, there are alien opponents who will seek to
destroy you. They will keep appearing until you have destroyed all the
reactors, at which point the status section will show how many are left to
kill before you have cleared the ship. You must destroy all the reactors on
the ship. Once the starship is cleared, you will be picked up and carried to
the next ship. Total in the game have ten ships.