Guess who?

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Across
  1. 3. Rapidly and quickly.
  2. 4. To have a stroll
  3. 8. To go down.
  4. 9. A cutting device made of two movable blades joined.
  5. 11. A suggestion or a thing you can choose from.
  6. 12. An adventure
  7. 14. Greater than average size or amount.
  8. 15. Weighing a lot
Down
  1. 1. One of the parts inside the body that cause movement.
  2. 2. Not afraid; ready to face danger or pain
  3. 5. The place or act where something happens.
  4. 6. To disturb someone or something.
  5. 7. To damage
  6. 10. The study of objects and happenings which can be observed.
  7. 13. A robot with a human appearance.