assign 5

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Across
  1. 2. easy/medium/hard
  2. 4. good fun verbs necessary
  3. 8. lawful annoying
  4. 9. helpful/unhelpful physical necessary
Down
  1. 1. infinite/limited 2D/3D necessary
  2. 3. person/animal
  3. 5. necessary complicated
  4. 6. guiding helpful rewarding
  5. 7. sandbox/adventure