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           You
          play the role of Billy Blaze, eight year-old kid genius who builds an
          interstellar ship when not working at home on his college fast-track
          degree. Among other household objects, Billy uses his Nintendo
          joystick for flight control and his mom's vacuum cleaner (heavily
          modified) for his ship's ion propulsion system (with pile height
          adjustment).  
     
          At the hint of galactic trouble, Billy dons his brother's football
          helmet and becomes "Commander Keen"--defender of Earth! Ever
          on the side of justice, Keen dispenses justice with an iron hand. 
     
          "Marooned on Mars" is episode one of the Commander Keen
          trilogy. Only part one is available via shareware distribution, the
          other two episodes ("The Earth Explodes" and "Keen Must
          Die!") may only be purchased from Apogee. 
     
    EACH VOLUME HAS COMPLETELY UNIQUE GRAPHICS AND ANIMATION!  
     
          Episode one is located on the planet mars. Episode two takes place on
          the immense Vorticon mothership, where you'll need to stop the
          destruction of Earth by disabling the eight deadly ray cannons aimed
          at Earth's greatest cities and wonders. Episode three takes Keen to
          the dangerous Vorticon home planet, where you'll explore huge caves,
          battle the top Vorticon ninja fighters and discover the secret of the
          Grand Intellect.
          
          
 Don't
          forget to check out our 10th
          Anniversary Look back at Commander Keen!
           Originally
          released December 14, 1990. 
          
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