erm what the heck???

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Across
  1. 2. Subject of videos by Matthew Patrick.
  2. 5. You can stand under my ________.
  3. 6. Bang bang, clang clang.
  4. 8. You could've done better.
  5. 9. Rest in peace.
  6. 10. Yellow Square.
  7. 11. "_______ my pages."
  8. 13. Over and over and over and over.
  9. 16. Least amount of effort.
  10. 17. It killed the radio star.
  11. 18. Portable Nintendo console.
  12. 19. Famous board game.
  13. 20. That wasn't supposed to be known yet!
Down
  1. 1. The sound effect for it is piano keys.
  2. 3. Hi my name is... what's yours?
  3. 4. How to beat Ghostbusters on NES.
  4. 7. The plot twist of famous Ctrl+Alt+Del comic.
  5. 12. "You can swear, but we're gonna beep it."
  6. 14. If a stranger does this to you, that's no good.
  7. 15. Animal _______.
  8. 17. Don't fall in, it's very hot.