River's WTW Puzzle using each of my words

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Across
  1. 3. a very large dose of something
  2. 4. short of breath, in need of oxygen
  3. 5. more than natural
  4. 6. an extreme hero
  5. 7. a popular software/ computer company
  6. 8. a microorganism
Down
  1. 1. a small oven that heats food up quickly
  2. 2. overly energetic
  3. 3. a tool that you look through to view very tiny objects
  4. 4. overly sensitive