video games of the 80s

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Across
  1. 3. Classic arcade game
  2. 4. Underground digging game
  3. 8. Vertical space shooter
  4. 10. Popular puzzle game
  5. 11. Arcade game with a gorilla
  6. 12. Classic road-crossing game
Down
  1. 1. Fantasy adventure game
  2. 2. Retro shoot 'em up
  3. 5. Iconic platformer
  4. 6. Platform puzzle game
  5. 7. Arcade game with knights
  6. 9. Arcade game with insects