v0.02

• Some changes  to level 17 to prevent an unintended solution.
  
• A small change  to level 18 to prevent an unintended solution.
• Changed to lock player input while shooting to prevent the solution from relying on quick manipulation. (For example, level 8, 14)
• Fixed a bug that caused skulls to disappear when blocks were pushed.
• Changed to prevent chanting while pushing blocks.

I made a walkthrough.