The ultimate puzzle

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Across
  1. 3. a game thats nostalgic
  2. 4. a place after the farlands
  3. 6. a place where you need to walk 1 000 000 block
  4. 7. a myth in minecraft
Down
  1. 1. the second boss in minecraft
  2. 2. a boss in minecraft
  3. 5. a mob in game