Maxwell's puzzling demon v1.0.8

[h3]Levels update[/h3]

• Changed 9-G.
  
• Adjusted the layout around 0-12 in 0-9 to prevent an unintended solution of 0-12.
  

[h3]Information[/h3]

• A problem where the BGM fails to loop has been reported. I am currently looking into the cause of the problem.
  If the problem occurs, it can be fixed by moving in and out of the level (exit + undo.)