Rolling Sky Bonus Levels: Hints From Their Original Levels

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Across
  1. 6. Monster Chorus
  2. 10. Ignite
  3. 11. The Spectre
  4. 12. Tetris
  5. 13. The 4th Anniversary
  6. 14. Ghost Samurai
  7. 16. Faded
  8. 18. Poker
  9. 19. Reindeers’ Gift
  10. 21. Delicacy Temptation
  11. 24. Midnight Carnival
  12. 26. Alone II
  13. 28. American Football
  14. 30. Alone
  15. 31. The Sea
  16. 32. Massif
  17. 35. Cube
  18. 36. Happy Birthday
Down
  1. 1. Reggae
  2. 2. Frightening Halloween Night
  3. 3. Monster City
  4. 4. Steam Era
  5. 5. VR Fairyland
  6. 7. Golden Christmas
  7. 8. Varying Christmas
  8. 9. Street Basketball
  9. 15. Psychedelic Music
  10. 17. 1UP
  11. 20. Microchip
  12. 22. Egypt
  13. 23. World Cup
  14. 25. Castle in the Sky
  15. 27. Sunset Glow
  16. 28. Circus
  17. 29. Neon
  18. 33. Dynamic Cube
  19. 34. Kepler’s Dream