Guess The Superheroes!!!

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Across
  1. 4. Always Angry
  2. 5. Shoots webs from his wrist
  3. 6. Parents died in an alley
Down
  1. 1. Weakness is Kryptonite
  2. 2. The fastest man alive
  3. 3. Built a suit of armour in a cave, with a box of scraps
  4. 4. The best aim, ever