Bandai Space Battleship Yamato (1983, LCD, Watch batteries, Model# 0200021)
Based on the Yamato Japanese animation, specifically the last movie of the series: Final Yamato (or Yamato Kanketsuhen). The object is to prevent the radioactive missiles from the 'Urku' (mothership of the Dinguiru Empire) from hitting the planet behind you. Then you must the Yamato's wave motion gun at Lugal de Zaru's ship. The game then repeats faster. (Apparently some of these goals aren't technically possible or shouldn't be happening based on the Anime itself, but it's just a game. :) )