Solar powered double panel LCD game (it has two LCDs on top of each other to enable much more impressive scene changes and possibly 3D like effects). Known as Akuryo no Yakata in Japan. Neat design, I know of these Double-panel games: Airport Panic, Frankenstein (or Mr. Franken), Hikyo Amazon (or Amazone), Terror House (or Akuryo no Yakata), Zaxxon. All but Zaxxon are solar powered games.