An update has been released with the following changes:

• The final boss is finally playable. Oopsie.
  
  
• Anna now always appears in the final cutscene.
  
  
• Added a shadow to the ending credits to make them more readable
  
  
• You can now replay the final boss once you kill it without the need to reopen the game
  
  
• Updated Anna's room with objects that were initially cut due to time constraints
  
  
• Added a completionism achievement for when you get all the other achievements
  

Thank you all for your support!