Superhero adventures

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Across
  1. 4. The radioactive arachnid with superpowers.
  2. 7. The Norse god of thunder wielding Mjolnir.
  3. 9. The gamma-irradiated scientist with incredible strength. The ___
  4. 11. The mystical sorcerer supreme and protector of Earth.
  5. 14. The aquatic superhero hailing from Atlantis.
  6. 15. The Emerald Knight and protector of the universe. Green _____
Down
  1. 1. The stretchable superhero with elastic powers.
  2. 2. The android superhero created by Ultron.
  3. 3. The Amazonian warrior princess from Themyscira.
  4. 5. The scarlet speedster with superhuman velocity. The ___
  5. 6. The "Man of Steel" from the planet Krypton.
  6. 8. The telepathic mutant leader of the X-Men.
  7. 10. The Martian shapeshifter and detective. Martian _____
  8. 12. The gamma-powered scientist who transforms into a monster. Dr. ___ and Mr. Hyde
  9. 13. The alter ego of billionaire Bruce Wayne.